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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">R (programming language)</span></span>
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</style><table class="infobox vevent"><tbody><tr><th colspan="2" class="infobox-above" style="background-color:#e0e0e0;">R</th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"></span></td></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"></span><div class="infobox-caption">Terminal window for R</div></td></tr><tr><th scope="row" class="infobox-label"><a href="Programming_paradigm" title="Programming paradigm">Paradigms</a></th><td class="infobox-data"><a href="Multi-paradigm_programming_language" class="mw-redirect" title="Multi-paradigm programming language">Multi-paradigm</a>: <a href="Procedural_programming" title="Procedural programming">procedural</a>, <a href="Object-oriented_programming" title="Object-oriented programming">object-oriented</a>, <a href="Functional_programming" title="Functional programming">functional</a>, <a href="Reflective_programming" title="Reflective programming">reflective</a>, <a href="Imperative_programming" title="Imperative programming">imperative</a>, <a href="Array_programming" title="Array programming">array</a><sup id="cite_ref-Morandat_1-0" class="reference"><a href="#cite_note-Morandat-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="Software_design" title="Software design">Designed&nbsp;by</a></th><td class="infobox-data"><a href="Ross_Ihaka" title="Ross Ihaka">Ross Ihaka</a> and <a href="Robert_Gentleman_(statistician)" title="Robert Gentleman (statistician)">Robert Gentleman</a></td></tr><tr><th scope="row" class="infobox-label"><a href="Software_developer" class="mw-redirect" title="Software developer">Developer</a></th><td class="infobox-data organiser">R Core Team</td></tr><tr><th scope="row" class="infobox-label">First&nbsp;appeared</th><td class="infobox-data">August&nbsp;1993<span style="display:none">&nbsp;(<span class="bday dtstart published updated">1993-08</span>)</span></td></tr><tr><td colspan="2" class="infobox-full-data"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">4.5.1<sup id="cite_ref-wikidata-4328ea7f68d448441fed2fcbc2731f889fba6bfc-v20_2-0" class="reference"><a href="#cite_note-wikidata-4328ea7f68d448441fed2fcbc2731f889fba6bfc-v20-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>&nbsp;
/ 13 June 2025<span style="display:none">&nbsp;(<span class="bday dtstart published updated">13 June 2025</span>)</span></div></td></tr><tr style="display:none"><td colspan="2">
</td></tr><tr><th scope="row" class="infobox-label"><a href="Type_system" title="Type system">Typing discipline</a></th><td class="infobox-data"><a href="Dynamic_typing" class="mw-redirect" title="Dynamic typing">Dynamic</a></td></tr><tr><th scope="row" class="infobox-label"><a href="Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data"><a href="Arm64" class="mw-redirect" title="Arm64">arm64</a> and <a href="X86-64" title="X86-64">x86-64</a></td></tr><tr><th scope="row" class="infobox-label"><a href="Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="GNU_GPL" class="mw-redirect" title="GNU GPL">GPL-2.0-or-later</a><sup id="cite_ref-gnugpl_3-0" class="reference"><a href="#cite_note-gnugpl-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label"><a href="Filename_extension" title="Filename extension">Filename extensions</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">
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</style><div class="plainlist"><ul><li>.r<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></li><li>.rdata</li><li>.rhistory</li><li>.rds</li><li>.rda<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li></ul></div></td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.r-project.org/">r-project.org</a></span></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #EEEEEE;">Influenced by</th></tr><tr><td colspan="2" class="infobox-full-data"><div class="hlist">
<ul><li><a href="Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a></li>
<li><a href="S_(programming_language)" title="S (programming language)">S</a><sup id="cite_ref-R_FAQ_6-0" class="reference"><a href="#cite_note-R_FAQ-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li>
<li><a href="Scheme_(programming_language)" title="Scheme (programming language)">Scheme</a><sup id="cite_ref-Morandat_1-1" class="reference"><a href="#cite_note-Morandat-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li></ul>
</div></td></tr><tr><th colspan="2" class="infobox-header" style="background-color: #EEEEEE;">Influenced</th></tr><tr><td colspan="2" class="infobox-full-data"><a href="Julia_(programming_language)" title="Julia (programming language)">Julia</a><sup id="cite_ref-Introduction_7-0" class="reference"><a href="#cite_note-Introduction-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="Pandas_(software)" title="Pandas (software)">pandas</a><sup id="cite_ref-pandas_8-0" class="reference"><a href="#cite_note-pandas-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></td></tr><tr><td colspan="2" class="infobox-below hlist" style="border-top: 1px solid #aaa; padding-top: 3px;">
<ul><li><span class="noviewer" typeof="mw:File"></span> <a href="https://en.wikibooks.org/wiki/R_Programming" class="extiw external" title="wikibooks:R Programming">R Programming</a> at Wikibooks</li></ul>
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<p><b>R</b> is a <a href="Programming_language" title="Programming language">programming language</a> for <a href="Statistical_computing" class="mw-redirect" title="Statistical computing">statistical computing</a> and <a href="Data_and_information_visualization" title="Data and information visualization">data visualization</a>. It has been widely adopted in the fields of <a href="Data_mining" title="Data mining">data mining</a>, <a href="Bioinformatics" title="Bioinformatics">bioinformatics</a>, <a href="Data_analysis" title="Data analysis">data analysis</a>, and <a href="Data_science" title="Data science">data science</a>.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>
</p><p>The core R language is extended by a large number of <a href="R_package" title="R package">software packages</a>, which contain <a href="Reusability" title="Reusability">reusable code</a>, documentation, and sample data. Some of the most popular R packages are in the <a href="Tidyverse" title="Tidyverse">tidyverse</a> collection, which enhances functionality for visualizing, transforming, and modelling data, as well as improves the ease of programming (according to the authors and users).<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>
</p><p>R is <a href="Free_and_open-source_software" title="Free and open-source software">free and open-source software</a> distributed under the <a href="GNU_General_Public_License" title="GNU General Public License">GNU General Public License</a>.<sup id="cite_ref-gnugpl_3-1" class="reference"><a href="#cite_note-gnugpl-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> The language is implemented primarily in <a href="C_(programming_language)" title="C (programming language)">C</a>, <a href="Fortran" title="Fortran">Fortran</a>, and <a href="Self-hosting_(compilers)" title="Self-hosting (compilers)">R itself</a>. <a href="Preprocessor" title="Preprocessor">Precompiled</a> <a href="Executable" title="Executable">executables</a> are available for the major <a href="Operating_system" title="Operating system">operating systems</a> (including <a href="Linux" title="Linux">Linux</a>, <a href="MacOS" title="MacOS">MacOS</a>, and <a href="Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a>).
</p><p>Its core is an <a href="Interpreted_language" class="mw-redirect" title="Interpreted language">interpreted language</a> with a native <a href="Command_line_interface" class="mw-redirect" title="Command line interface">command line interface</a>. In addition, multiple <a href="Third-party_software_component" title="Third-party software component">third-party</a> applications are available as <a href="Graphical_user_interface" title="Graphical user interface">graphical user interfaces</a>; such applications include <a href="RStudio" title="RStudio">RStudio</a> (an <a href="Integrated_development_environment" title="Integrated development environment">integrated development environment</a>) and <a href="Jupyter" class="mw-redirect" title="Jupyter">Jupyter</a> (a <a href="Notebook_interface" title="Notebook interface">notebook interface</a>).
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<div class="mw-heading mw-heading2"><h2 id="History">History</h2></div>
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</style><div class="mod-gallery mod-gallery-default mod-gallery-center"><div class="title"><div>Co-originators of the R language</div></div><div class="main"><div><ul class="nochecker whitebg gallery mw-gallery-traditional">
<li class="gallerybox" style="width: 195px">
<div class="thumb" style="width: 190px; height: 200px;"><span typeof="mw:File"></span></div>
<div class="gallerytext">Ross Ihaka</div>
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<li class="gallerybox" style="width: 195px">
<div class="thumb" style="width: 190px; height: 200px;"><span typeof="mw:File"></span></div>
<div class="gallerytext">Robert Gentleman</div>
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<p>R was started by professors <a href="Ross_Ihaka" title="Ross Ihaka">Ross Ihaka</a> and <a href="Robert_Gentleman_(statistician)" title="Robert Gentleman (statistician)">Robert Gentleman</a> as a programming language to teach introductory statistics at the <a href="University_of_Auckland" title="University of Auckland">University of Auckland</a>.<sup id="cite_ref-otago_pg12_12-0" class="reference"><a href="#cite_note-otago_pg12-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> The language was inspired by the <a href="S_(programming_language)" title="S (programming language)">S programming language</a>, with most S programs able to run unaltered in R.<sup id="cite_ref-R_FAQ_6-1" class="reference"><a href="#cite_note-R_FAQ-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The language was also inspired by <a href="Scheme_(programming_language)" title="Scheme (programming language)">Scheme's</a> <a href="Lexical_scoping" class="mw-redirect" title="Lexical scoping">lexical scoping</a>, allowing for <a href="Local_variable" title="Local variable">local variables</a>.<sup id="cite_ref-Morandat_1-2" class="reference"><a href="#cite_note-Morandat-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>
</p><p>The name of the language, R, comes from being both an S language successor and the shared first letter of the authors, Ross and Robert.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> In August 1993, Ihaka and Gentleman posted a <a href="Binary_file" title="Binary file">binary</a> file of R on StatLib — a data archive website.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> At the same time, they announced the posting on the <i>s-news</i> mailing list.<sup id="cite_ref-Interface98_15-0" class="reference"><a href="#cite_note-Interface98-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> On 5 December 1997, R became a <a href="GNU_project" class="mw-redirect" title="GNU project">GNU project</a> when version 0.60 was released.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> On 29 February 2000, the 1.0 version was released.<sup id="cite_ref-otago_pg18_17-0" class="reference"><a href="#cite_note-otago_pg18-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup>
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<div class="mw-heading mw-heading2"><h2 id="Packages">Packages</h2></div>
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</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="R_package" title="R package">R package</a></div>

<p><a href="R_package" title="R package">R packages</a> are collections of functions, documentation, and data that expand R.<sup id="cite_ref-rds_pagexvii_18-0" class="reference"><a href="#cite_note-rds_pagexvii-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> For example, packages can add reporting features (using packages such as <a href="RStudio#Reproducible_analyses_with_R_Markdown_vignettes" title="RStudio">RMarkdown</a>, Quarto,<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> <a href="Knitr" title="Knitr">knitr</a>, and <a href="Sweave" title="Sweave">Sweave</a>) and support for various statistical techniques (such as <a href="Linear" class="mw-redirect" title="Linear">linear</a>, <a href="Generalized_linear_model" title="Generalized linear model">generalized linear</a> and <a href="Nonlinear_system" title="Nonlinear system">nonlinear</a> modeling, classical <a href="Statistical_hypothesis_testing" class="mw-redirect" title="Statistical hypothesis testing">statistical tests</a>, <a href="Spatial_analysis" title="Spatial analysis">spatial</a> analysis, <a href="Time-series_analysis" class="mw-redirect" title="Time-series analysis">time-series analysis</a>, and <a href="Cluster_analysis" title="Cluster analysis">clustering</a>). Ease of package installation and use have contributed to the language's adoption in <a href="Data_science" title="Data science">data science</a>.<sup id="cite_ref-Chambers2020_20-0" class="reference"><a href="#cite_note-Chambers2020-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup>
</p><p>Immediately available when starting R after installation, base packages provide the fundamental and necessary syntax and commands for programming, computing, graphics production, <a href="Elementary_arithmetic" title="Elementary arithmetic">basic arithmetic</a>, and statistical functionality.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup>
</p><p>An example is the <a href="Tidyverse" title="Tidyverse">tidyverse</a> collection of R packages, which bundles several subsidiary packages to provide a common <a href="API" title="API">API</a>. The collection specializes in tasks related to accessing and processing "<a href="Tidy_data" class="mw-redirect" title="Tidy data">tidy data</a>",<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> which are data contained in a <a href="Two-dimensional_space" title="Two-dimensional space">two-dimensional</a> table with a single row for each <a href="Observation" title="Observation">observation</a> and a single column for each variable.<sup id="cite_ref-rds_23-0" class="reference"><a href="#cite_note-rds-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>
</p><p>Installing a package occurs only once. For example, to install the tidyverse collection:<sup id="cite_ref-rds_23-1" class="reference"><a href="#cite_note-rds-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">install.packages</span><span class="p">(</span><span class="s">"tidyverse"</span><span class="p">)</span>
</pre></div>
<p>To load the functions, data, and documentation of a package, one calls the <code>library()</code> function. To load the tidyverse collection, one can execute the following code:<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="c1"># The package name can be enclosed in quotes</span>
<span class="gp">&gt; </span><span class="nf">library</span><span class="p">(</span><span class="s">"tidyverse"</span><span class="p">)</span>

<span class="gp">&gt; </span><span class="c1"># But the package name can also be used without quotes</span>
<span class="gp">&gt; </span><span class="nf">library</span><span class="p">(</span><span class="n">tidyverse</span><span class="p">)</span>
</pre></div>
<p>The <a href="R_package#Comprehensive_R_Archive_Network_(CRAN)" title="R package">Comprehensive R Archive Network</a> (CRAN) was founded in 1997 by Kurt Hornik and <a href="Friedrich_Leisch" title="Friedrich Leisch">Friedrich Leisch</a> to host R's <a href="Source_code" title="Source code">source code</a>, executable files, documentation, and user-created packages.<sup id="cite_ref-:10_25-0" class="reference"><a href="#cite_note-:10-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> CRAN's name and scope mimic the <a href="Comprehensive_TeX_Archive_Network" class="mw-redirect" title="Comprehensive TeX Archive Network">Comprehensive TeX Archive Network</a> (CTAN) and the <a href="Comprehensive_Perl_Archive_Network" class="mw-redirect" title="Comprehensive Perl Archive Network">Comprehensive Perl Archive Network</a> (CPAN).<sup id="cite_ref-:10_25-1" class="reference"><a href="#cite_note-:10-25"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> CRAN originally had only three <a href="Mirror_site" title="Mirror site">mirror sites</a> and twelve contributed packages.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> As of 30&nbsp;June&nbsp;2025, it has 90 mirrors<sup id="cite_ref-:3_27-0" class="reference"><a href="#cite_note-:3-27"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> and 22,390 contributed packages.<sup id="cite_ref-:9_28-0" class="reference"><a href="#cite_note-:9-28"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> Packages are also available in <a href="Repository_(version_control)" title="Repository (version control)">repositories</a> such as R-Forge, Omegahat, and <a href="GitHub" title="GitHub">GitHub</a>.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup>
</p><p>To provide guidance on the CRAN web site, its <a rel="nofollow" class="external text" href="https://cran.r-project.org/web/views/">Task Views</a> area lists packages that are relevant for specific topics; sample topics include <a href="Causal_inference" title="Causal inference">causal inference</a>, <a href="Finance" title="Finance">finance</a>, <a href="Genetics" title="Genetics">genetics</a>, <a href="High-performance_computing" title="High-performance computing">high-performance computing</a>, <a href="Machine_learning" title="Machine learning">machine learning</a>, <a href="Medical_imaging" title="Medical imaging">medical imaging</a>, <a href="Meta-analysis" title="Meta-analysis">meta-analysis</a>, <a href="Social_science" title="Social science">social sciences</a>, and <a href="Spatial_statistics" title="Spatial statistics">spatial statistics</a>.
</p><p>The <a href="Bioconductor" title="Bioconductor">Bioconductor</a> project provides packages for <a href="Genomics" title="Genomics">genomic</a> data analysis, <a href="Complementary_DNA" title="Complementary DNA">complementary DNA</a>, <a href="Microarray" title="Microarray">microarray</a>, and <a href="High-throughput_sequencing" class="mw-redirect" title="High-throughput sequencing">high-throughput sequencing</a> methods.
</p>
<div class="mw-heading mw-heading2"><h2 id="Community">Community</h2></div>

<p>There are three main groups that help support R software development:
</p>
<ul><li>The R Core Team was founded in 1997 to maintain the R <a href="Source_code" title="Source code">source code</a>.</li>
<li>The R Foundation for Statistical Computing was founded in April 2003 to provide financial support.</li>
<li>The R Consortium is a <a href="Linux_Foundation" title="Linux Foundation">Linux Foundation</a> project to develop R infrastructure.</li></ul>
<p><i><a href="The_R_Journal" title="The R Journal">The R Journal</a></i> is an <a href="Open_access" title="Open access">open access</a>, <a href="Academic_journal" title="Academic journal">academic journal</a> that features short to medium-length articles on the use and development of R. The journal includes articles on packages, programming tips, CRAN news, and foundation news.
</p>

<p>The R community hosts many conferences and in-person meetups.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>b<span class="cite-bracket">]</span></a></sup> These groups include:
</p>
<ul><li>UseR!: an annual international R user conference (<a rel="nofollow" class="external text" href="https://www.r-project.org/conferences/">website</a>)</li>
<li>Directions in Statistical Computing (DSC) (<a rel="nofollow" class="external text" href="https://www.r-project.org/conferences/">website</a>)</li>
<li><a href="R-Ladies" title="R-Ladies">R-Ladies</a>: an organization to promote <a href="Gender_diversity" title="Gender diversity">gender diversity</a> in the R community (<a rel="nofollow" class="external text" href="https://rladies.org">website</a>)</li>
<li>SatRdays: R-focused conferences held on Saturdays (<a rel="nofollow" class="external text" href="https://satrdays.github.io/">website</a>)</li>
<li>Data Science &amp; AI Conferences (<a rel="nofollow" class="external text" href="https://rstats.ai/">website</a>)</li>
<li>posit::conf (formerly known as rstudio::conf) (<a rel="nofollow" class="external text" href="https://www.posit.co/conference/">website</a>)</li></ul>
<p>On social media sites such as Twitter, the hashtag <code>#rstats</code> can be used to follow new developments in the R community.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2></div>
<div class="mw-heading mw-heading3"><h3 id="Hello,_World!">Hello, World!</h3></div>
<p>The following is a <a href="%22Hello%2C_World!%22_program" title="&quot;Hello, World!&quot; program">"Hello, World!" program</a>:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">print</span><span class="p">(</span><span class="s">"Hello, World!"</span><span class="p">)</span>
<span class="go">[1] "Hello, World!"</span>
</pre></div><p>Here is an alternative version, which uses the <code>cat()</code> function:</p><div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">cat</span><span class="p">(</span><span class="s">"Hello, World!"</span><span class="p">)</span>
<span class="go">Hello, World!</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Basic_syntax">Basic syntax</h3></div>
<p>The following examples illustrate the basic <a href="Programming_language_syntax" class="mw-redirect" title="Programming language syntax">syntax of the language</a> and use of the command-line interface.<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>c<span class="cite-bracket">]</span></a></sup>
</p><p>In R, the generally preferred <a href="Assignment_(computer_science)" title="Assignment (computer science)">assignment operator</a> is an arrow made from two characters <code>&lt;-</code>, although <code>=</code> can be used in some cases.<sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="n">x</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">1</span><span class="o">:</span><span class="m">6</span><span class="w"> </span><span class="c1"># Create a numeric vector in the current environment</span>
<span class="gp">&gt; </span><span class="n">y</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="n">x</span><span class="o">^</span><span class="m">2</span><span class="w"> </span><span class="c1"># Similarly, create a vector based on the values in x.</span>
<span class="gp">&gt; </span><span class="nf">print</span><span class="p">(</span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="c1"># Print the vector’s contents.</span>
<span class="go">[1] 1 4 9 16 25 36</span>

<span class="gp">&gt; </span><span class="n">z</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">y</span><span class="w"> </span><span class="c1"># Create a new vector that is the sum of x and y</span>
<span class="gp">&gt; </span><span class="n">z</span><span class="w"> </span><span class="c1"># Return the contents of z to the current environment.</span>
<span class="go">[1] 2 6 12 20 30 42</span>

<span class="gp">&gt; </span><span class="n">z_matrix</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">matrix</span><span class="p">(</span><span class="n">z</span><span class="p">,</span><span class="w"> </span><span class="n">nrow</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span><span class="p">)</span><span class="w"> </span><span class="c1"># Create a new matrix that transforms the vector z into a 3x2 matrix object</span>
<span class="gp">&gt; </span><span class="n">z_matrix</span><span class="w"> </span>
<span class="go"> [,1] [,2]</span>
<span class="go">[1,] 2 20</span>
<span class="go">[2,] 6 30</span>
<span class="go">[3,] 12 42</span>

<span class="gp">&gt; </span><span class="m">2</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="nf">t</span><span class="p">(</span><span class="n">z_matrix</span><span class="p">)</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="c1"># Transpose the matrix; multiply every element by 2; subtract 2 from each element in the matrix; and then return the results to the terminal.</span>
<span class="go"> [,1] [,2] [,3]</span>
<span class="go">[1,] 2 10 22</span>
<span class="go">[2,] 38 58 82</span>

<span class="gp">&gt; </span><span class="n">new_df</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">data.frame</span><span class="p">(</span><span class="nf">t</span><span class="p">(</span><span class="n">z_matrix</span><span class="p">),</span><span class="w"> </span><span class="n">row.names</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="s">"A"</span><span class="p">,</span><span class="w"> </span><span class="s">"B"</span><span class="p">))</span><span class="w"> </span><span class="c1"># Create a new dataframe object that contains the data from a transposed z_matrix, with row names 'A' and 'B'</span>
<span class="gp">&gt; </span><span class="nf">names</span><span class="p">(</span><span class="n">new_df</span><span class="p">)</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="s">"X"</span><span class="p">,</span><span class="w"> </span><span class="s">"Y"</span><span class="p">,</span><span class="w"> </span><span class="s">"Z"</span><span class="p">)</span><span class="w"> </span><span class="c1"># Set the column names of the new_df dataframe as X, Y, and Z.</span>
<span class="gp">&gt; </span><span class="nf">print</span><span class="p">(</span><span class="n">new_df</span><span class="p">)</span><span class="w"> </span><span class="c1"># Print the current results.</span>
<span class="go"> X Y Z</span>
<span class="go">A 2 6 12</span>
<span class="go">B 20 30 42</span>

<span class="gp">&gt; </span><span class="n">new_df</span><span class="o">$</span><span class="n">Z</span><span class="w"> </span><span class="c1"># Output the Z column</span>
<span class="go">[1] 12 42</span>

<span class="gp">&gt; </span><span class="n">new_df</span><span class="o">$</span><span class="n">Z</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">new_df</span><span class="p">[</span><span class="s">'Z'</span><span class="p">]</span><span class="w"> </span><span class="o">&amp;&amp;</span><span class="w"> </span><span class="n">new_df</span><span class="p">[</span><span class="m">3</span><span class="p">]</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">new_df</span><span class="o">$</span><span class="n">Z</span><span class="w"> </span><span class="c1"># The dataframe column Z can be accessed using the syntax $Z, ['Z'], or [3], and the values are the same. </span>
<span class="go">[1] TRUE</span>

<span class="gp">&gt; </span><span class="nf">attributes</span><span class="p">(</span><span class="n">new_df</span><span class="p">)</span><span class="w"> </span><span class="c1"># Print information about attributes of the new_df dataframe</span>
<span class="go">$names</span>
<span class="go">[1] "X" "Y" "Z"</span>

<span class="go">$row.names</span>
<span class="go">[1] "A" "B"</span>

<span class="go">$class</span>
<span class="go">[1] "data.frame"</span>

<span class="gp">&gt; </span><span class="nf">attributes</span><span class="p">(</span><span class="n">new_df</span><span class="p">)</span><span class="o">$</span><span class="n">row.names</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="s">"one"</span><span class="p">,</span><span class="w"> </span><span class="s">"two"</span><span class="p">)</span><span class="w"> </span><span class="c1"># Access and then change the row.names attribute; this can also be done using the rownames() function</span>
<span class="gp">&gt; </span><span class="n">new_df</span>
<span class="go"> X Y Z</span>
<span class="go">one 2 6 12</span>
<span class="go">two 20 30 42</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Structure_of_a_function">Structure of a function</h3></div>
<p>R is able to create <a href="Function_(computer_programming)" title="Function (computer programming)">functions</a> that add new functionality for code reuse.<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> <a href="Object_(computer_science)" title="Object (computer science)">Objects</a> created within the body of the function (which are enclosed by curly brackets) remain <a href="Local_variable" title="Local variable">accessible only</a> from within the function, and any <a href="Data_type" title="Data type">data type</a> may be returned. In R, almost all functions and all <a href="User-defined_function" title="User-defined function">user-defined functions</a> are <a href="Closure_(computer_programming)" title="Closure (computer programming)">closures</a>.<sup id="cite_ref-37" class="reference"><a href="#cite_note-37"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup>
</p><p>The following is an example of creating a function to perform an arithmetic calculation:
</p>
<div class="mw-highlight mw-highlight-lang-r mw-content-ltr" dir="ltr"><pre><span class="c1"># The function's input parameters are x and y.</span>
<span class="c1"># The function, named f, returns a linear combination of x and y.</span>
<span class="n">f</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="kr">function</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">z</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">3</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">y</span>

<span class="w"> </span><span class="c1"># An explicit return() statement is optional--it could be replaced with simply `z` in this case.</span>
<span class="w"> </span><span class="kr">return</span><span class="p">(</span><span class="n">z</span><span class="p">)</span>
<span class="p">}</span>

<span class="c1"># As an alternative, the last statement executed in a function is returned implicitly.</span>
<span class="n">f</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="kr">function</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="m">3</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">y</span>
</pre></div>
<p>The following is some output from using the function defined above:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">f</span><span class="p">(</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">)</span><span class="w"> </span><span class="c1"># 3 * 1 + 4 * 2 = 3 + 8</span>
<span class="go">[1] 11</span>

<span class="gp">&gt; </span><span class="nf">f</span><span class="p">(</span><span class="nf">c</span><span class="p">(</span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">),</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="p">))</span><span class="w"> </span><span class="c1"># Element-wise calculation</span>
<span class="go">[1] 23 18 25</span>

<span class="gp">&gt; </span><span class="nf">f</span><span class="p">(</span><span class="m">1</span><span class="o">:</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="p">)</span><span class="w"> </span><span class="c1"># Equivalent to f(c(1, 2, 3), c(4, 4, 4))</span>
<span class="go">[1] 19 22 25</span>
</pre></div>
<p>It is possible to define functions to be used as <a href="Infix_notation" title="Infix notation">infix operators</a> by using the special syntax <code>`%name%`</code>, where "name" is the function variable name:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="n">`%sumx2y2%`</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">function</span><span class="p">(</span><span class="n">e1</span><span class="p">,</span><span class="w"> </span><span class="n">e2</span><span class="p">)</span><span class="w"> </span><span class="p">{</span><span class="n">e1</span><span class="w"> </span><span class="o">^</span><span class="w"> </span><span class="m">2</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">e2</span><span class="w"> </span><span class="o">^</span><span class="w"> </span><span class="m">2</span><span class="p">}</span>
<span class="gp">&gt; </span><span class="m">1</span><span class="o">:</span><span class="m">3</span><span class="w"> </span><span class="o">%sumx2y2%</span><span class="w"> </span><span class="o">-</span><span class="p">(</span><span class="m">1</span><span class="o">:</span><span class="m">3</span><span class="p">)</span>
<span class="go">[1] 2 8 18</span>
</pre></div>
<p>Since R version 4.1.0, functions can be written in a short notation, which is useful for passing anonymous functions to higher-order functions:<sup id="cite_ref-38" class="reference"><a href="#cite_note-38"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">sapply</span><span class="p">(</span><span class="m">1</span><span class="o">:</span><span class="m">5</span><span class="p">,</span><span class="w"> </span>\<span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="n">i</span><span class="o">^</span><span class="m">2</span><span class="p">)</span><span class="w"> </span><span class="c1"># here \(i) is the same as function(i) </span>
<span class="go">[1] 1 4 9 16 25</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Native_pipe_operator">Native pipe operator</h3></div>
<p>In R version 4.1.0, a native <a href="Pipeline_(computing)" title="Pipeline (computing)">pipe operator</a>, <code>|&gt;</code>, was introduced.<sup id="cite_ref-39" class="reference"><a href="#cite_note-39"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> This operator allows users to chain functions together, rather than using nested function calls.
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="nf">nrow</span><span class="p">(</span><span class="nf">subset</span><span class="p">(</span><span class="n">mtcars</span><span class="p">,</span><span class="w"> </span><span class="n">cyl</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="m">4</span><span class="p">))</span><span class="w"> </span><span class="c1"># Nested without the pipe character</span>
<span class="go">[1] 11</span>

<span class="gp">&gt; </span><span class="n">mtcars</span><span class="w"> </span><span class="o">|&gt;</span><span class="w"> </span><span class="nf">subset</span><span class="p">(</span><span class="n">cyl</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="m">4</span><span class="p">)</span><span class="w"> </span><span class="o">|&gt;</span><span class="w"> </span><span class="nf">nrow</span><span class="p">()</span><span class="w"> </span><span class="c1"># Using the pipe character</span>
<span class="go">[1] 11</span>
</pre></div>
<p>Another alternative to nested functions is the use of intermediate objects, rather than the pipe operator:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="n">mtcars_subset_rows</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">subset</span><span class="p">(</span><span class="n">mtcars</span><span class="p">,</span><span class="w"> </span><span class="n">cyl</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="m">4</span><span class="p">)</span>
<span class="gp">&gt; </span><span class="n">num_mtcars_subset</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">nrow</span><span class="p">(</span><span class="n">mtcars_subset_rows</span><span class="p">)</span>
<span class="gp">&gt; </span><span class="nf">print</span><span class="p">(</span><span class="n">num_mtcars_subset</span><span class="p">)</span>
<span class="go">[1] 11</span>
</pre></div><p>While the pipe operator can produce code that is easier to read, it is advisable to chain together at most 10-15 lines of code using this operator, as well as to chunk code into <a href="Task_(project_management)" title="Task (project management)">sub-tasks</a> that are saved into objects having meaningful names.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup>
The following is an example having fewer than 10 lines, which some readers may find difficult to grasp in the absence of intermediate named steps:</p><div class="mw-highlight mw-highlight-lang-r mw-content-ltr mw-highlight-lines" dir="ltr"><pre><span class="p">(</span>\<span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">42</span><span class="p">,</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="kc">letters</span><span class="p">,</span><span class="w"> </span><span class="kc">LETTERS</span><span class="p">,</span><span class="w"> </span><span class="s">" "</span><span class="p">,</span><span class="w"> </span><span class="s">":"</span><span class="p">,</span><span class="w"> </span><span class="s">")"</span><span class="p">))</span>
<span class="w"> </span><span class="nf">strsplit</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="s">""</span><span class="p">)[[</span><span class="m">1</span><span class="p">]]</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span><span class="nf">Vectorize</span><span class="p">(</span>\<span class="p">(</span><span class="n">chr</span><span class="p">)</span><span class="w"> </span><span class="nf">which</span><span class="p">(</span><span class="n">chr</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="p">)</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">))()</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span><span class="n">`+`</span><span class="p">)(</span><span class="n">n</span><span class="p">)</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span><span class="n">`%%`</span><span class="p">)(</span><span class="nf">length</span><span class="p">(</span><span class="n">key</span><span class="p">))</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span>\<span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="n">key</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">])()</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="nf">paste</span><span class="p">(</span><span class="n">collapse</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">""</span><span class="p">)</span>
<span class="p">)(</span><span class="s">"duvFkvFksnvEyLkHAErnqnoyr"</span><span class="p">)</span>
</pre></div><p>The following is a version of the preceding code that is easier to read:</p><div class="mw-highlight mw-highlight-lang-r mw-content-ltr" dir="ltr"><pre><span class="n">default_key</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="kc">letters</span><span class="p">,</span><span class="w"> </span><span class="kc">LETTERS</span><span class="p">,</span><span class="w"> </span><span class="s">" "</span><span class="p">,</span><span class="w"> </span><span class="s">":"</span><span class="p">,</span><span class="w"> </span><span class="s">")"</span><span class="p">)</span>

<span class="n">f</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="kr">function</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">42</span><span class="p">,</span><span class="w"> </span><span class="n">key</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">default_key</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
<span class="w"> </span><span class="n">split_input</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">strsplit</span><span class="p">(</span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="s">""</span><span class="p">)[[</span><span class="m">1</span><span class="p">]]</span>
<span class="w"> </span><span class="n">results</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="p">(</span><span class="nf">Vectorize</span><span class="p">(</span>\<span class="p">(</span><span class="n">chr</span><span class="p">)</span><span class="w"> </span><span class="nf">which</span><span class="p">(</span><span class="n">chr</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">key</span><span class="p">)</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">))(</span><span class="n">split_input</span><span class="p">)</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span><span class="n">`+`</span><span class="p">)(</span><span class="n">n</span><span class="p">)</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span><span class="n">`%%`</span><span class="p">)(</span><span class="nf">length</span><span class="p">(</span><span class="n">key</span><span class="p">))</span><span class="w"> </span><span class="o">|&gt;</span>
<span class="w"> </span><span class="p">(</span>\<span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="w"> </span><span class="n">key</span><span class="p">[</span><span class="n">i</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">])()</span>
<span class="w"> </span><span class="n">combined_results</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">paste</span><span class="p">(</span><span class="n">results</span><span class="p">,</span><span class="w"> </span><span class="n">collapse</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s">""</span><span class="p">)</span>
<span class="w"> </span><span class="kr">return</span><span class="p">(</span><span class="n">combined_results</span><span class="p">)</span>
<span class="p">}</span>

<span class="nf">f</span><span class="p">(</span><span class="s">"duvFkvFksnvEyLkHAErnqnoyr"</span><span class="p">)</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Object-oriented_programming">Object-oriented programming</h3></div>
<p>The R language has native support for <a href="Object-oriented_programming" title="Object-oriented programming">object-oriented programming</a>. There are two native <a href="Application_framework" title="Application framework">frameworks</a>, the so-called S3 and S4 systems. The former, being more informal, supports single dispatch on the first argument, and objects are assigned to a class simply by setting a "class" attribute in each object. The latter is a system like the <a href="CLOS" class="mw-redirect" title="CLOS">Common Lisp Object System (CLOS)</a>, with formal classes (also derived from <a href="S_(programming_language)#S4" title="S (programming language)">S</a>) and generic methods, which supports <a href="Multiple_dispatch" title="Multiple dispatch">multiple dispatch</a> and <a href="Multiple_inheritance" title="Multiple inheritance">multiple inheritance</a><sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup>
</p><p>In the example below, <code>summary()</code> is a <a href="Generic_function" title="Generic function">generic function</a> that dispatches to different methods depending on whether its <a href="Argument_of_a_function" title="Argument of a function">argument</a> is a numeric <a href="Vector_(mathematics_and_physics)" title="Vector (mathematics and physics)">vector</a> or a <i>factor</i>:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="gp">&gt; </span><span class="n">data</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="s">"a"</span><span class="p">,</span><span class="w"> </span><span class="s">"b"</span><span class="p">,</span><span class="w"> </span><span class="s">"c"</span><span class="p">,</span><span class="w"> </span><span class="s">"a"</span><span class="p">,</span><span class="w"> </span><span class="kc">NA</span><span class="p">)</span>
<span class="gp">&gt; </span><span class="nf">summary</span><span class="p">(</span><span class="n">data</span><span class="p">)</span>
<span class="go"> Length Class Mode </span>
<span class="go"> 5 character character </span>
<span class="gp">&gt; </span><span class="nf">summary</span><span class="p">(</span><span class="nf">as.factor</span><span class="p">(</span><span class="n">data</span><span class="p">))</span>
<span class="go"> a b c NA's </span>
<span class="go"> 2 1 1 1</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Modeling_and_plotting">Modeling and plotting</h3></div>

<p>The R language has built-in support for <a href="Data_modeling" title="Data modeling">data modeling</a> and graphics. The following example shows how R can generate and plot a <a href="Linear_model" title="Linear model">linear model</a> with residuals.
</p>
<div class="mw-highlight mw-highlight-lang-r mw-content-ltr" dir="ltr"><pre><span class="c1"># Create x and y values</span>
<span class="n">x</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">1</span><span class="o">:</span><span class="m">6</span>
<span class="n">y</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="n">x</span><span class="o">^</span><span class="m">2</span>

<span class="c1"># Linear regression model: y = A + B * x</span>
<span class="n">model</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">lm</span><span class="p">(</span><span class="n">y</span><span class="w"> </span><span class="o">~</span><span class="w"> </span><span class="n">x</span><span class="p">)</span>

<span class="c1"># Display an in-depth summary of the model</span>
<span class="nf">summary</span><span class="p">(</span><span class="n">model</span><span class="p">)</span>

<span class="c1"># Create a 2-by-2 layout for figures</span>
<span class="nf">par</span><span class="p">(</span><span class="n">mfrow</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">))</span>

<span class="c1"># Output diagnostic plots of the model</span>
<span class="nf">plot</span><span class="p">(</span><span class="n">model</span><span class="p">)</span>
</pre></div>
<p>The output from the <code>summary()</code> function in the preceding code block is as follows:
</p>
<div class="mw-highlight mw-highlight-lang-rout mw-content-ltr" dir="ltr"><pre><span class="go">Residuals:</span>
<span class="go"> 1 2 3 4 5 6 7 8 9 10</span>
<span class="go"> 3.3333 -0.6667 -2.6667 -2.6667 -0.6667 3.3333</span>

<span class="go">Coefficients:</span>
<span class="go"> Estimate Std. Error t value Pr(&gt;|t|) </span>
<span class="go">(Intercept) -9.3333 2.8441 -3.282 0.030453 * </span>
<span class="go">x 7.0000 0.7303 9.585 0.000662 ***</span>
<span class="go">---</span>
<span class="go">Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1</span>

<span class="go">Residual standard error: 3.055 on 4 degrees of freedom</span>
<span class="go">Multiple R-squared: 0.9583, Adjusted R-squared: 0.9478</span>
<span class="go">F-statistic: 91.88 on 1 and 4 DF, p-value: 0.000662</span>
</pre></div>
<div class="mw-heading mw-heading3"><h3 id="Mandelbrot_set">Mandelbrot set</h3></div>

<p>This example of a <a href="Mandelbrot_set" title="Mandelbrot set">Mandelbrot set</a> highlights the use of <a href="Complex_numbers" class="mw-redirect" title="Complex numbers">complex numbers</a>. It models the first 20 <a href="Iteration" title="Iteration">iterations</a> of the <a href="Equation" title="Equation">equation</a> <code>z = z<sup>2</sup> + c</code>, where <code>c</code> represents different <a href="Complex_number" title="Complex number">complex constants</a>.
</p><p>To run this sample code, it is necessary to first install the package that provides the <code>write.gif()</code> function:
</p>
<div class="mw-highlight mw-highlight-lang-r mw-content-ltr" dir="ltr"><pre><span class="nf">install.packages</span><span class="p">(</span><span class="s">"caTools"</span><span class="p">)</span>
</pre></div>
<p>The sample code is as follows:
</p>
<div class="mw-highlight mw-highlight-lang-r mw-content-ltr" dir="ltr"><pre><span class="nf">library</span><span class="p">(</span><span class="n">caTools</span><span class="p">)</span>

<span class="n">jet.colors</span><span class="w"> </span><span class="o">&lt;-</span>
<span class="w"> </span><span class="nf">colorRampPalette</span><span class="p">(</span>
<span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="s">"green"</span><span class="p">,</span><span class="w"> </span><span class="s">"pink"</span><span class="p">,</span><span class="w"> </span><span class="s">"#007FFF"</span><span class="p">,</span><span class="w"> </span><span class="s">"cyan"</span><span class="p">,</span><span class="w"> </span><span class="s">"#7FFF7F"</span><span class="p">,</span>
<span class="w"> </span><span class="s">"white"</span><span class="p">,</span><span class="w"> </span><span class="s">"#FF7F00"</span><span class="p">,</span><span class="w"> </span><span class="s">"red"</span><span class="p">,</span><span class="w"> </span><span class="s">"#7F0000"</span><span class="p">))</span>

<span class="n">dx</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">1500</span><span class="w"> </span><span class="c1"># define width</span>
<span class="n">dy</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">1400</span><span class="w"> </span><span class="c1"># define height</span>

<span class="n">C</span><span class="w"> </span><span class="o">&lt;-</span>
<span class="w"> </span><span class="nf">complex</span><span class="p">(</span>
<span class="w"> </span><span class="n">real</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nf">rep</span><span class="p">(</span><span class="nf">seq</span><span class="p">(</span><span class="m">-2.2</span><span class="p">,</span><span class="w"> </span><span class="m">1.0</span><span class="p">,</span><span class="w"> </span><span class="n">length.out</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dx</span><span class="p">),</span><span class="w"> </span><span class="n">each</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dy</span><span class="p">),</span>
<span class="w"> </span><span class="n">imag</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nf">rep</span><span class="p">(</span><span class="nf">seq</span><span class="p">(</span><span class="m">-1.2</span><span class="p">,</span><span class="w"> </span><span class="m">1.2</span><span class="p">,</span><span class="w"> </span><span class="n">length.out</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dy</span><span class="p">),</span><span class="w"> </span><span class="n">times</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">dx</span><span class="p">)</span>
<span class="w"> </span><span class="p">)</span>

<span class="c1"># reshape as matrix of complex numbers</span>
<span class="n">C</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">matrix</span><span class="p">(</span><span class="n">C</span><span class="p">,</span><span class="w"> </span><span class="n">dy</span><span class="p">,</span><span class="w"> </span><span class="n">dx</span><span class="p">)</span>

<span class="c1"># initialize output 3D array</span>
<span class="n">X</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">array</span><span class="p">(</span><span class="m">0</span><span class="p">,</span><span class="w"> </span><span class="nf">c</span><span class="p">(</span><span class="n">dy</span><span class="p">,</span><span class="w"> </span><span class="n">dx</span><span class="p">,</span><span class="w"> </span><span class="m">20</span><span class="p">))</span>

<span class="n">Z</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="m">0</span>

<span class="c1"># loop with 20 iterations</span>
<span class="nf">for </span><span class="p">(</span><span class="n">k</span><span class="w"> </span><span class="n">in</span><span class="w"> </span><span class="m">1</span><span class="o">:</span><span class="m">20</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>

<span class="w"> </span><span class="c1"># the central difference equation</span>
<span class="w"> </span><span class="n">Z</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="n">Z</span><span class="o">^</span><span class="m">2</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="n">C</span>

<span class="w"> </span><span class="c1"># capture the results</span>
<span class="w"> </span><span class="n">X</span><span class="p">[,</span><span class="w"> </span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">]</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nf">exp</span><span class="p">(</span><span class="o">-</span><span class="nf">abs</span><span class="p">(</span><span class="n">Z</span><span class="p">))</span>
<span class="p">}</span>

<span class="nf">write.gif</span><span class="p">(</span>
<span class="w"> </span><span class="n">X</span><span class="p">,</span>
<span class="w"> </span><span class="s">"Mandelbrot.gif"</span><span class="p">,</span>
<span class="w"> </span><span class="n">col</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">jet.colors</span><span class="p">,</span>
<span class="w"> </span><span class="n">delay</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">100</span><span class="p">)</span>
</pre></div>
<div class="mw-heading mw-heading2"><h2 id="Version_names">Version names</h2></div>

<p>All R version releases from 2.14.0 onward have <a href="Code_name" title="Code name">codenames</a> that make reference to <i><a href="Peanuts" title="Peanuts">Peanuts</a></i> comics and films.<sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup>
</p><p>In 2018, core R developer <a href="Peter_Dalgaard" title="Peter Dalgaard">Peter Dalgaard</a> presented a history of R releases since 1997.<sup id="cite_ref-:2_45-0" class="reference"><a href="#cite_note-:2-45"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> Some notable early releases before the named releases include the following:
</p>
<ul><li>Version 1.0.0, released on 29 February 2000, a <a href="Leap_days" class="mw-redirect" title="Leap days">leap day</a></li>
<li>Version 2.0.0, released on 4 October 2004, "which at least had a nice ring to it"<sup id="cite_ref-:2_45-1" class="reference"><a href="#cite_note-:2-45"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup></li></ul>
<p>The idea of naming R version releases was inspired by the naming system for <a href="Debian_version_history" title="Debian version history">Debian</a> and <a href="Ubuntu_version_history" title="Ubuntu version history">Ubuntu</a> versions. Dalgaard noted an additional reason for the use of Peanuts references in R codenames—the humorous observation that "everyone in statistics is a <a href="P-value" title="P-value">P-nut</a>."<sup id="cite_ref-:2_45-2" class="reference"><a href="#cite_note-:2-45"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup>
</p>
<table class="wikitable">
<caption>R release codenames
</caption>
<tbody><tr>
<th>Version
</th>
<th>Release date
</th>
<th>Name
</th>
<th>Peanuts reference
</th>
<th>Reference
</th></tr>
<tr>
<td>4.5.1
</td>
<td>2025-06-13
</td>
<td>Great Square Root
</td>
<td><sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.5.0
</td>
<td>2025-04-11
</td>
<td>How About a Twenty-Six
</td>
<td><sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.4.3
</td>
<td>2025-02-28
</td>
<td>Trophy Case
</td>
<td><sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.4.2
</td>
<td>2024-10-31
</td>
<td>Pile of Leaves
</td>
<td><sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.4.1
</td>
<td>2024-06-14
</td>
<td>Race for Your Life
</td>
<td><sup id="cite_ref-54" class="reference"><a href="#cite_note-54"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.4.0
</td>
<td>2024-04-24
</td>
<td>Puppy Cup
</td>
<td><sup id="cite_ref-56" class="reference"><a href="#cite_note-56"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-57" class="reference"><a href="#cite_note-57"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.3.3
</td>
<td>2024-02-29
</td>
<td>Angel Food Cake
</td>
<td><sup id="cite_ref-58" class="reference"><a href="#cite_note-58"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-59" class="reference"><a href="#cite_note-59"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.3.2
</td>
<td>2023-10-31
</td>
<td>Eye Holes
</td>
<td><sup id="cite_ref-60" class="reference"><a href="#cite_note-60"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-61" class="reference"><a href="#cite_note-61"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.3.1
</td>
<td>2023-06-16
</td>
<td>Beagle Scouts
</td>
<td><sup id="cite_ref-62" class="reference"><a href="#cite_note-62"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-63" class="reference"><a href="#cite_note-63"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.3.0
</td>
<td>2023-04-21
</td>
<td>Already Tomorrow
</td>
<td><sup id="cite_ref-64" class="reference"><a href="#cite_note-64"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-65" class="reference"><a href="#cite_note-65"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-66" class="reference"><a href="#cite_note-66"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-67" class="reference"><a href="#cite_note-67"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.2.3
</td>
<td>2023-03-15
</td>
<td>Shortstop Beagle
</td>
<td><sup id="cite_ref-68" class="reference"><a href="#cite_note-68"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-69" class="reference"><a href="#cite_note-69"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.2.2
</td>
<td>2022-10-31
</td>
<td>Innocent and Trusting
</td>
<td><sup id="cite_ref-70" class="reference"><a href="#cite_note-70"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-71" class="reference"><a href="#cite_note-71"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.2.1
</td>
<td>2022-06-23
</td>
<td>Funny-Looking Kid
</td>
<td><sup id="cite_ref-72" class="reference"><a href="#cite_note-72"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-73" class="reference"><a href="#cite_note-73"><span class="cite-bracket">[</span>70<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-74" class="reference"><a href="#cite_note-74"><span class="cite-bracket">[</span>71<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-75" class="reference"><a href="#cite_note-75"><span class="cite-bracket">[</span>72<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-76" class="reference"><a href="#cite_note-76"><span class="cite-bracket">[</span>73<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-77" class="reference"><a href="#cite_note-77"><span class="cite-bracket">[</span>74<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-78" class="reference"><a href="#cite_note-78"><span class="cite-bracket">[</span>75<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.2.0
</td>
<td>2022-04-22
</td>
<td>Vigorous Calisthenics
</td>
<td><sup id="cite_ref-:1_79-0" class="reference"><a href="#cite_note-:1-79"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-80" class="reference"><a href="#cite_note-80"><span class="cite-bracket">[</span>77<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.1.3
</td>
<td>2022-03-10
</td>
<td>One Push-Up
</td>
<td><sup id="cite_ref-:1_79-1" class="reference"><a href="#cite_note-:1-79"><span class="cite-bracket">[</span>76<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-Rd_R_4.1.2_is_released_81-0" class="reference"><a href="#cite_note-Rd_R_4.1.2_is_released-81"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.1.2
</td>
<td>2021-11-01
</td>
<td>Bird Hippie
</td>
<td><sup id="cite_ref-82" class="reference"><a href="#cite_note-82"><span class="cite-bracket">[</span>79<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-83" class="reference"><a href="#cite_note-83"><span class="cite-bracket">[</span>80<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-Rd_R_4.1.2_is_released_81-1" class="reference"><a href="#cite_note-Rd_R_4.1.2_is_released-81"><span class="cite-bracket">[</span>78<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.1.1
</td>
<td>2021-08-10
</td>
<td>Kick Things
</td>
<td><sup id="cite_ref-84" class="reference"><a href="#cite_note-84"><span class="cite-bracket">[</span>81<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-85" class="reference"><a href="#cite_note-85"><span class="cite-bracket">[</span>82<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.1.0
</td>
<td>2021-05-18
</td>
<td>Camp Pontanezen
</td>
<td><sup id="cite_ref-86" class="reference"><a href="#cite_note-86"><span class="cite-bracket">[</span>83<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-87" class="reference"><a href="#cite_note-87"><span class="cite-bracket">[</span>84<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.5
</td>
<td>2021-03-31
</td>
<td>Shake and Throw
</td>
<td><sup id="cite_ref-88" class="reference"><a href="#cite_note-88"><span class="cite-bracket">[</span>85<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-89" class="reference"><a href="#cite_note-89"><span class="cite-bracket">[</span>86<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.4
</td>
<td>2021-02-15
</td>
<td>Lost Library Book
</td>
<td><sup id="cite_ref-90" class="reference"><a href="#cite_note-90"><span class="cite-bracket">[</span>87<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-91" class="reference"><a href="#cite_note-91"><span class="cite-bracket">[</span>88<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-92" class="reference"><a href="#cite_note-92"><span class="cite-bracket">[</span>89<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-93" class="reference"><a href="#cite_note-93"><span class="cite-bracket">[</span>90<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.3
</td>
<td>2020-10-10
</td>
<td>Bunny-Wunnies Freak Out
</td>
<td><sup id="cite_ref-94" class="reference"><a href="#cite_note-94"><span class="cite-bracket">[</span>91<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-95" class="reference"><a href="#cite_note-95"><span class="cite-bracket">[</span>92<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.2
</td>
<td>2020-06-22
</td>
<td>Taking Off Again
</td>
<td><sup id="cite_ref-96" class="reference"><a href="#cite_note-96"><span class="cite-bracket">[</span>93<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-97" class="reference"><a href="#cite_note-97"><span class="cite-bracket">[</span>94<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.1
</td>
<td>2020-06-06
</td>
<td>See Things Now
</td>
<td><sup id="cite_ref-98" class="reference"><a href="#cite_note-98"><span class="cite-bracket">[</span>95<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-99" class="reference"><a href="#cite_note-99"><span class="cite-bracket">[</span>96<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>4.0.0
</td>
<td>2020-04-24
</td>
<td>Arbor Day
</td>
<td><sup id="cite_ref-100" class="reference"><a href="#cite_note-100"><span class="cite-bracket">[</span>97<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-101" class="reference"><a href="#cite_note-101"><span class="cite-bracket">[</span>98<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.6.3
</td>
<td>2020-02-29
</td>
<td>Holding the Windsock
</td>
<td><sup id="cite_ref-102" class="reference"><a href="#cite_note-102"><span class="cite-bracket">[</span>99<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-103" class="reference"><a href="#cite_note-103"><span class="cite-bracket">[</span>100<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.6.2
</td>
<td>2019-12-12
</td>
<td>Dark and Stormy Night
</td>
<td>See <a href="It_was_a_dark_and_stormy_night#Literature" title="It was a dark and stormy night">It was a dark and stormy night#Literature</a><sup id="cite_ref-104" class="reference"><a href="#cite_note-104"><span class="cite-bracket">[</span>101<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-105" class="reference"><a href="#cite_note-105"><span class="cite-bracket">[</span>102<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.6.1
</td>
<td>2019-07-05
</td>
<td>Action of the Toes
</td>
<td><sup id="cite_ref-auto1_106-0" class="reference"><a href="#cite_note-auto1-106"><span class="cite-bracket">[</span>103<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-107" class="reference"><a href="#cite_note-107"><span class="cite-bracket">[</span>104<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.6.0
</td>
<td>2019-04-26
</td>
<td>Planting of a Tree
</td>
<td><sup id="cite_ref-108" class="reference"><a href="#cite_note-108"><span class="cite-bracket">[</span>105<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-109" class="reference"><a href="#cite_note-109"><span class="cite-bracket">[</span>106<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.5.3
</td>
<td>2019-03-11
</td>
<td>Great Truth
</td>
<td><sup id="cite_ref-110" class="reference"><a href="#cite_note-110"><span class="cite-bracket">[</span>107<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-111" class="reference"><a href="#cite_note-111"><span class="cite-bracket">[</span>108<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.5.2
</td>
<td>2018-12-20
</td>
<td>Eggshell Igloos
</td>
<td><sup id="cite_ref-112" class="reference"><a href="#cite_note-112"><span class="cite-bracket">[</span>109<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-113" class="reference"><a href="#cite_note-113"><span class="cite-bracket">[</span>110<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.5.1
</td>
<td>2018-07-02
</td>
<td>Feather Spray
</td>
<td><sup id="cite_ref-114" class="reference"><a href="#cite_note-114"><span class="cite-bracket">[</span>111<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-115" class="reference"><a href="#cite_note-115"><span class="cite-bracket">[</span>112<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.5.0
</td>
<td>2018-04-23
</td>
<td>Joy in Playing
</td>
<td><sup id="cite_ref-116" class="reference"><a href="#cite_note-116"><span class="cite-bracket">[</span>113<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-117" class="reference"><a href="#cite_note-117"><span class="cite-bracket">[</span>114<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.4.4
</td>
<td>2018-03-15
</td>
<td>Someone to Lean On
</td>
<td><sup id="cite_ref-118" class="reference"><a href="#cite_note-118"><span class="cite-bracket">[</span>115<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-119" class="reference"><a href="#cite_note-119"><span class="cite-bracket">[</span>116<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-120" class="reference"><a href="#cite_note-120"><span class="cite-bracket">[</span>117<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-121" class="reference"><a href="#cite_note-121"><span class="cite-bracket">[</span>118<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.4.3
</td>
<td>2017-11-30
</td>
<td>Kite-Eating Tree
</td>
<td>See <a href="Kite-Eating_Tree" title="Kite-Eating Tree">Kite-Eating Tree</a><sup id="cite_ref-122" class="reference"><a href="#cite_note-122"><span class="cite-bracket">[</span>119<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-123" class="reference"><a href="#cite_note-123"><span class="cite-bracket">[</span>120<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.4.2
</td>
<td>2017-09-28
</td>
<td>Short Summer
</td>
<td>See <i><a href="It_Was_a_Short_Summer%2C_Charlie_Brown" title="It Was a Short Summer, Charlie Brown">It Was a Short Summer, Charlie Brown</a></i>
</td>
<td><sup id="cite_ref-124" class="reference"><a href="#cite_note-124"><span class="cite-bracket">[</span>121<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.4.1
</td>
<td>2017-06-30
</td>
<td>Single Candle
</td>
<td><sup id="cite_ref-auto_125-0" class="reference"><a href="#cite_note-auto-125"><span class="cite-bracket">[</span>122<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-126" class="reference"><a href="#cite_note-126"><span class="cite-bracket">[</span>123<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.4.0
</td>
<td>2017-04-21
</td>
<td>You Stupid Darkness
</td>
<td><sup id="cite_ref-auto_125-1" class="reference"><a href="#cite_note-auto-125"><span class="cite-bracket">[</span>122<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-127" class="reference"><a href="#cite_note-127"><span class="cite-bracket">[</span>124<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.3.3
</td>
<td>2017-03-06
</td>
<td>Another Canoe
</td>
<td><sup id="cite_ref-128" class="reference"><a href="#cite_note-128"><span class="cite-bracket">[</span>125<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-129" class="reference"><a href="#cite_note-129"><span class="cite-bracket">[</span>126<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.3.2
</td>
<td>2016-10-31
</td>
<td>Sincere Pumpkin Patch
</td>
<td><sup id="cite_ref-130" class="reference"><a href="#cite_note-130"><span class="cite-bracket">[</span>127<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-131" class="reference"><a href="#cite_note-131"><span class="cite-bracket">[</span>128<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.3.1
</td>
<td>2016-06-21
</td>
<td>Bug in Your Hair
</td>
<td><sup id="cite_ref-132" class="reference"><a href="#cite_note-132"><span class="cite-bracket">[</span>129<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-133" class="reference"><a href="#cite_note-133"><span class="cite-bracket">[</span>130<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.3.0
</td>
<td>2016-05-03
</td>
<td>Supposedly Educational
</td>
<td><sup id="cite_ref-134" class="reference"><a href="#cite_note-134"><span class="cite-bracket">[</span>131<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-135" class="reference"><a href="#cite_note-135"><span class="cite-bracket">[</span>132<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.5
</td>
<td>2016-04-11
</td>
<td>Very, Very Secure Dishes
</td>
<td><sup id="cite_ref-:0_136-0" class="reference"><a href="#cite_note-:0-136"><span class="cite-bracket">[</span>133<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-137" class="reference"><a href="#cite_note-137"><span class="cite-bracket">[</span>134<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-138" class="reference"><a href="#cite_note-138"><span class="cite-bracket">[</span>135<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-139" class="reference"><a href="#cite_note-139"><span class="cite-bracket">[</span>136<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.4
</td>
<td>2016-03-11
</td>
<td>Very Secure Dishes
</td>
<td><sup id="cite_ref-:0_136-1" class="reference"><a href="#cite_note-:0-136"><span class="cite-bracket">[</span>133<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-140" class="reference"><a href="#cite_note-140"><span class="cite-bracket">[</span>137<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.3
</td>
<td>2015-12-10
</td>
<td>Wooden Christmas-Tree
</td>
<td>See <i><a href="A_Charlie_Brown_Christmas" title="A Charlie Brown Christmas">A Charlie Brown Christmas</a></i><sup id="cite_ref-141" class="reference"><a href="#cite_note-141"><span class="cite-bracket">[</span>138<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-142" class="reference"><a href="#cite_note-142"><span class="cite-bracket">[</span>139<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.2
</td>
<td>2015-08-14
</td>
<td>Fire Safety
</td>
<td><sup id="cite_ref-143" class="reference"><a href="#cite_note-143"><span class="cite-bracket">[</span>140<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-144" class="reference"><a href="#cite_note-144"><span class="cite-bracket">[</span>141<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-145" class="reference"><a href="#cite_note-145"><span class="cite-bracket">[</span>142<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.1
</td>
<td>2015-06-18
</td>
<td>World-Famous Astronaut
</td>
<td><sup id="cite_ref-146" class="reference"><a href="#cite_note-146"><span class="cite-bracket">[</span>143<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-147" class="reference"><a href="#cite_note-147"><span class="cite-bracket">[</span>144<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.2.0
</td>
<td>2015-04-16
</td>
<td>Full of Ingredients
</td>
<td><sup id="cite_ref-148" class="reference"><a href="#cite_note-148"><span class="cite-bracket">[</span>145<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-149" class="reference"><a href="#cite_note-149"><span class="cite-bracket">[</span>146<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.1.3
</td>
<td>2015-03-09
</td>
<td>Smooth Sidewalk
</td>
<td><sup id="cite_ref-150" class="reference"><a href="#cite_note-150"><span class="cite-bracket">[</span>147<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-151" class="reference"><a href="#cite_note-151"><span class="cite-bracket">[</span>148<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.1.2
</td>
<td>2014-10-31
</td>
<td>Pumpkin Helmet
</td>
<td>See <i><a href="You're_a_Good_Sport%2C_Charlie_Brown" title="You're a Good Sport, Charlie Brown">You're a Good Sport, Charlie Brown</a></i>
</td>
<td><sup id="cite_ref-152" class="reference"><a href="#cite_note-152"><span class="cite-bracket">[</span>149<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.1.1
</td>
<td>2014-07-10
</td>
<td>Sock it to Me
</td>
<td><sup id="cite_ref-153" class="reference"><a href="#cite_note-153"><span class="cite-bracket">[</span>150<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-154" class="reference"><a href="#cite_note-154"><span class="cite-bracket">[</span>151<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-155" class="reference"><a href="#cite_note-155"><span class="cite-bracket">[</span>152<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-156" class="reference"><a href="#cite_note-156"><span class="cite-bracket">[</span>153<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-157" class="reference"><a href="#cite_note-157"><span class="cite-bracket">[</span>154<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.1.0
</td>
<td>2014-04-10
</td>
<td>Spring Dance
</td>
<td><sup id="cite_ref-auto1_106-1" class="reference"><a href="#cite_note-auto1-106"><span class="cite-bracket">[</span>103<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-158" class="reference"><a href="#cite_note-158"><span class="cite-bracket">[</span>155<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.0.3
</td>
<td>2014-03-06
</td>
<td>Warm Puppy
</td>
<td><sup id="cite_ref-159" class="reference"><a href="#cite_note-159"><span class="cite-bracket">[</span>156<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-160" class="reference"><a href="#cite_note-160"><span class="cite-bracket">[</span>157<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.0.2
</td>
<td>2013-09-25
</td>
<td>Frisbee Sailing
</td>
<td><sup id="cite_ref-161" class="reference"><a href="#cite_note-161"><span class="cite-bracket">[</span>158<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-162" class="reference"><a href="#cite_note-162"><span class="cite-bracket">[</span>159<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.0.1
</td>
<td>2013-05-16
</td>
<td>Good Sport
</td>
<td><sup id="cite_ref-163" class="reference"><a href="#cite_note-163"><span class="cite-bracket">[</span>160<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-164" class="reference"><a href="#cite_note-164"><span class="cite-bracket">[</span>161<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>3.0.0
</td>
<td>2013-04-03
</td>
<td>Masked Marvel
</td>
<td><sup id="cite_ref-165" class="reference"><a href="#cite_note-165"><span class="cite-bracket">[</span>162<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-166" class="reference"><a href="#cite_note-166"><span class="cite-bracket">[</span>163<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.15.3
</td>
<td>2013-03-01
</td>
<td>Security Blanket
</td>
<td><sup id="cite_ref-167" class="reference"><a href="#cite_note-167"><span class="cite-bracket">[</span>164<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-168" class="reference"><a href="#cite_note-168"><span class="cite-bracket">[</span>165<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.15.2
</td>
<td>2012-10-26
</td>
<td>Trick or Treat
</td>
<td><sup id="cite_ref-169" class="reference"><a href="#cite_note-169"><span class="cite-bracket">[</span>166<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-170" class="reference"><a href="#cite_note-170"><span class="cite-bracket">[</span>167<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.15.1
</td>
<td>2012-06-22
</td>
<td>Roasted Marshmallows
</td>
<td><sup id="cite_ref-171" class="reference"><a href="#cite_note-171"><span class="cite-bracket">[</span>168<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-172" class="reference"><a href="#cite_note-172"><span class="cite-bracket">[</span>169<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.15.0
</td>
<td>2012-03-30
</td>
<td>Easter Beagle
</td>
<td><sup id="cite_ref-173" class="reference"><a href="#cite_note-173"><span class="cite-bracket">[</span>170<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-174" class="reference"><a href="#cite_note-174"><span class="cite-bracket">[</span>171<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.14.2
</td>
<td>2012-02-29
</td>
<td>Gift-Getting Season
</td>
<td>See <i><a href="It's_the_Easter_Beagle%2C_Charlie_Brown" title="It's the Easter Beagle, Charlie Brown">It's the Easter Beagle, Charlie Brown</a></i><sup id="cite_ref-175" class="reference"><a href="#cite_note-175"><span class="cite-bracket">[</span>172<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-176" class="reference"><a href="#cite_note-176"><span class="cite-bracket">[</span>173<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.14.1
</td>
<td>2011-12-22
</td>
<td>December Snowflakes
</td>
<td><sup id="cite_ref-177" class="reference"><a href="#cite_note-177"><span class="cite-bracket">[</span>174<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-178" class="reference"><a href="#cite_note-178"><span class="cite-bracket">[</span>175<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>2.14.0
</td>
<td>2011-10-31
</td>
<td>Great Pumpkin
</td>
<td>See <i><a href="It's_the_Great_Pumpkin%2C_Charlie_Brown" title="It's the Great Pumpkin, Charlie Brown">It's the Great Pumpkin, Charlie Brown</a></i><sup id="cite_ref-179" class="reference"><a href="#cite_note-179"><span class="cite-bracket">[</span>176<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-180" class="reference"><a href="#cite_note-180"><span class="cite-bracket">[</span>177<span class="cite-bracket">]</span></a></sup>
</td></tr>
<tr>
<td>r-devel
</td>
<td>N/A
</td>
<td>Unsuffered Consequences
</td>
<td><sup id="cite_ref-181" class="reference"><a href="#cite_note-181"><span class="cite-bracket">[</span>178<span class="cite-bracket">]</span></a></sup>
</td>
<td><sup id="cite_ref-:2_45-3" class="reference"><a href="#cite_note-:2-45"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup>
</td></tr></tbody></table>
<div class="mw-heading mw-heading2"><h2 id="Interfaces">Interfaces</h2></div>
<div class="mod-gallery mod-gallery-default mod-gallery-center"><div class="title"><div>Examples of user interfaces for R</div></div><div class="main"><div><ul class="nochecker whitebg gallery mw-gallery-packed">
<li class="gallerybox" style="width: 227.33333333333px">
<div class="thumb" style="width: 225.33333333333px;"><span typeof="mw:File"></span></div>
<div class="gallerytext">Screenshot of the RKWard front-end running on the KDE 4 environment</div>
</li>
<li class="gallerybox" style="width: 152.66666666667px">
<div class="thumb" style="width: 150.66666666667px;"><span typeof="mw:File"></span></div>
<div class="gallerytext">R running in the emacs editor with the ESS package</div>
</li>
<li class="gallerybox" style="width: 286.66666666667px">
<div class="thumb" style="width: 284.66666666667px;"><span typeof="mw:File"></span></div>
<div class="gallerytext"><a href="RStudio" title="RStudio">RStudio</a> <a href="Integrated_development_environment" title="Integrated development environment">integrated development environment</a> (IDE)</div>
</li>
</ul></div></div></div>
<p>R is installed with a <a href="Command-line_interface" title="Command-line interface">command line console</a> by default, but there are multiple ways to interface with the language:
</p>
<ul><li><a href="Integrated_development_environment" title="Integrated development environment">Integrated development environment (IDE)</a>:
<ul><li>R.app<sup id="cite_ref-182" class="reference"><a href="#cite_note-182"><span class="cite-bracket">[</span>179<span class="cite-bracket">]</span></a></sup> (OSX/<a href="MacOS" title="MacOS">macOS</a> only)</li>
<li><a href="Rattle_GUI" title="Rattle GUI">Rattle GUI</a></li>
<li><a href="R_Commander" title="R Commander">R Commander</a></li>
<li><a href="RKWard" title="RKWard">RKWard</a></li>
<li><a href="RStudio" title="RStudio">RStudio</a></li>
<li>Tinn-R<sup id="cite_ref-183" class="reference"><a href="#cite_note-183"><span class="cite-bracket">[</span>180<span class="cite-bracket">]</span></a></sup></li></ul></li>
<li>General-purpose IDEs:
<ul><li><a href="Eclipse_(software)" title="Eclipse (software)">Eclipse</a> via the <a rel="nofollow" class="external text" href="https://marketplace.eclipse.org/content/statet-r/">StatET plugin</a></li>
<li><a href="Microsoft_Visual_Studio" class="mw-redirect" title="Microsoft Visual Studio">Visual Studio</a> via <a href="R_Tools_for_Visual_Studio" title="R Tools for Visual Studio">R Tools for Visual Studio</a>.</li></ul></li>
<li><a href="Source-code_editor" title="Source-code editor">Source-code editors</a>:
<ul><li><a href="Emacs_Speaks_Statistics" title="Emacs Speaks Statistics">Emacs</a></li>
<li><a href="Vim_(text_editor)" title="Vim (text editor)">Vim</a> via the <a rel="nofollow" class="external text" href="https://www.vim.org/scripts/script.php?script_id=2628">Nvim-R plugin</a></li>
<li><a href="Kate_(text_editor)" title="Kate (text editor)">Kate</a></li>
<li><a href="LyX" title="LyX">LyX</a> via <a href="Sweave" title="Sweave">Sweave</a></li>
<li><a href="WinEdt" title="WinEdt">WinEdt</a> (<a rel="nofollow" class="external text" href="https://cran.r-project.org/package=RWinEdt">website</a>)</li>
<li><a href="Jupyter" class="mw-redirect" title="Jupyter">Jupyter</a> (<a rel="nofollow" class="external text" href="https://docs.anaconda.com/anaconda/navigator/tutorials/r-lang/">website</a>)</li></ul></li>
<li>Other <a href="Scripting_language" title="Scripting language">scripting languages</a>:
<ul><li><a href="Python_(programming_language)" title="Python (programming language)">Python</a> (<a rel="nofollow" class="external text" href="https://rpy2.github.io">website</a>)</li>
<li><a href="Perl" title="Perl">Perl</a> (<a rel="nofollow" class="external text" href="https://metacpan.org/module/Statistics::R">website</a>)</li>
<li><a href="Ruby_(programming_language)" title="Ruby (programming language)">Ruby</a> (<a rel="nofollow" class="external text" href="https://github.com/alexgutteridge/rsruby">source code</a>)</li>
<li><a href="F_Sharp_(programming_language)" title="F Sharp (programming language)">F#</a> (<a rel="nofollow" class="external text" href="https://bluemountaincapital.github.io/FSharpRProvider/">website</a>)</li>
<li><a href="Julia_(programming_language)" title="Julia (programming language)">Julia</a> (<a rel="nofollow" class="external text" href="https://github.com/JuliaInterop/RCall.jl">source code</a>).</li></ul></li>
<li>General-purpose programming languages:
<ul><li><a href="Java_(programming_language)" title="Java (programming language)">Java</a> via the <a rel="nofollow" class="external text" href="https://cran.r-project.org/web/packages/Rserve/index.html">Rserve socket server</a></li>
<li><a href="C_Sharp_(programming_language)" title="C Sharp (programming language)">.NET C#</a> (<a rel="nofollow" class="external text" href="https://rdotnet.github.io/rdotnet/">website</a>)</li></ul></li></ul>
<p>Statistical frameworks that use R in the background include <a href="Jamovi" title="Jamovi">Jamovi</a> and <a href="JASP" title="JASP">JASP</a>.
</p>
<div class="mw-heading mw-heading2"><h2 id="Implementations">Implementations</h2></div>
<p>The main R implementation is written primarily in <a href="C_(programming_language)" title="C (programming language)">C</a>, <a href="Fortran" title="Fortran">Fortran</a>, and <a href="Self-hosting_(compilers)" title="Self-hosting (compilers)">R itself</a>. Other implementations include the following:
</p>
<ul><li><a rel="nofollow" class="external text" href="http://www.pqr-project.org">pretty quick R</a> (pqR), by <a href="Radford_M._Neal" title="Radford M. Neal">Radford M. Neal</a>, which attempts to improve <a href="Memory_management" title="Memory management">memory management</a>.</li>
<li><a href="Renjin" title="Renjin">Renjin</a> for the <a href="Java_virtual_machine" title="Java virtual machine">Java Virtual Machine</a>.</li>
<li><a rel="nofollow" class="external text" href="https://www.cs.kent.ac.uk/projects/cxxr">CXXR</a> and Riposte<sup id="cite_ref-184" class="reference"><a href="#cite_note-184"><span class="cite-bracket">[</span>181<span class="cite-bracket">]</span></a></sup> written in <a href="C%2B%2B" title="C++">C++</a>.</li>
<li><a href="Oracle_Corporation" title="Oracle Corporation">Oracle's</a> <a rel="nofollow" class="external text" href="https://github.com/oracle/fastr">FastR</a> built on <a rel="nofollow" class="external text" href="https://www.graalvm.org/">GraalVM</a>.</li>
<li><a href="TIBCO_Software" title="TIBCO Software">TIBCO</a> Enterprise Runtime for R (TERR) to integrate with <a href="Spotfire" title="Spotfire">Spotfire</a>.<sup id="cite_ref-185" class="reference"><a href="#cite_note-185"><span class="cite-bracket">[</span>182<span class="cite-bracket">]</span></a></sup> (The company also created <a href="S-PLUS" title="S-PLUS">S-Plus</a>, an implementation of the S language.)</li></ul>
<p>Microsoft R Open (MRO) was an R implementation. As of 30 June 2021, Microsoft began to phase out MRO in favor of the CRAN distribution.<sup id="cite_ref-186" class="reference"><a href="#cite_note-186"><span class="cite-bracket">[</span>183<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Commercial_support">Commercial support</h2></div>
<p>
</p><p>Although R is an <a href="Open-source" class="mw-redirect" title="Open-source">open-source</a> project, some companies provide commercial support:
</p>
<ul><li><a href="Oracle_Corporation" title="Oracle Corporation">Oracle</a> provides commercial support for its <a href="Oracle_Big_Data_Appliance" title="Oracle Big Data Appliance">Big Data Appliance</a>, which integrates R into its other products.</li>
<li><a href="IBM" title="IBM">IBM</a> provides commercial support for execution of R within <a href="Hadoop" class="mw-redirect" title="Hadoop">Hadoop</a>.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Comparison_of_numerical-analysis_software" title="Comparison of numerical-analysis software">Comparison of numerical-analysis software</a></li>
<li><a href="Comparison_of_statistical_packages" title="Comparison of statistical packages">Comparison of statistical packages</a></li>
<li><a href="List_of_numerical-analysis_software" title="List of numerical-analysis software">List of numerical-analysis software</a></li>
<li><a href="List_of_statistical_software" title="List of statistical software">List of statistical software</a></li>
<li><a href="Rmetrics" title="Rmetrics">Rmetrics</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2></div>
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<div class="mw-references-wrap"><ol class="references">
<li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text">This code displays to <a href="Standard_streams" title="Standard streams">standard error</a> a listing of all the packages that the tidyverse collection depends upon. The code may also display warnings showing namespace conflicts, which may typically be ignored.</span>
</li>
<li id="cite_note-32"><span class="mw-cite-backlink"><b><a href="#cite_ref-32">^</a></b></span> <span class="reference-text">Information about conferences and meetings is available in a community-maintained list on GitHub, <span class="url"><a rel="nofollow" class="external text" href="http://jumpingrivers.github.io/meetingsR/">jumpingrivers<wbr>.github<wbr>.io<wbr>/meetingsR<wbr>/</a></span></span>
</li>
<li id="cite_note-34"><span class="mw-cite-backlink"><b><a href="#cite_ref-34">^</a></b></span> <span class="reference-text">An expanded list of standard language features can be found in the manual "An Introduction to R", <span class="url"><a rel="nofollow" class="external text" href="http://cran.r-project.org/doc/manuals/R-intro.pdf">cran<wbr>.r-project<wbr>.org<wbr>/doc<wbr>/manuals<wbr>/R-intro<wbr>.pdf</a></span></span>
</li>
</ol></div></div>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
<div class="reflist">
<div class="mw-references-wrap mw-references-columns"><ol class="references">
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<li id="cite_note-75"><span class="mw-cite-backlink"><b><a href="#cite_ref-75">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1973" class="citation web cs1">Schulz, Charles (13 October 1973). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1973/10/13">"Peanuts by Charles Schulz for October 13, 1973 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-76"><span class="mw-cite-backlink"><b><a href="#cite_ref-76">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1974" class="citation web cs1">Schulz, Charles (8 February 1974). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1974/02/08">"Peanuts by Charles Schulz for February 08, 1974 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-77"><span class="mw-cite-backlink"><b><a href="#cite_ref-77">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1970" class="citation web cs1">Schulz, Charles (8 January 1970). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1970/01/08">"Peanuts by Charles Schulz for January 08, 1970 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-78"><span class="mw-cite-backlink"><b><a href="#cite_ref-78">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2022/000685.html">"[Rd] R 4.2.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-:1-79"><span class="mw-cite-backlink">^ <a href="#cite_ref-:1_79-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:1_79-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (6 March 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/03/06">"Peanuts by Charles Schulz for March 06, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-80"><span class="mw-cite-backlink"><b><a href="#cite_ref-80">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2022/000683.html">"[Rd] R 4.2.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-Rd_R_4.1.2_is_released-81"><span class="mw-cite-backlink">^ <a href="#cite_ref-Rd_R_4.1.2_is_released_81-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Rd_R_4.1.2_is_released_81-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2021/000677.html">"[Rd] R 4.1.2 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-82"><span class="mw-cite-backlink"><b><a href="#cite_ref-82">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (1 November 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/11/01">"Peanuts by Charles Schulz for November 01, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-83"><span class="mw-cite-backlink"><b><a href="#cite_ref-83">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (12 July 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/07/12">"Peanuts by Charles Schulz for July 12, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-84"><span class="mw-cite-backlink"><b><a href="#cite_ref-84">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1978" class="citation web cs1">Schulz, Charles (17 May 1978). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1978/05/17">"Peanuts by Charles Schulz for May 17, 1978 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-85"><span class="mw-cite-backlink"><b><a href="#cite_ref-85">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2021/000672.html">"[Rd] R 4.1.1 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-86"><span class="mw-cite-backlink"><b><a href="#cite_ref-86">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1986" class="citation web cs1">Schulz, Charles (12 February 1986). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1986/02/12">"Peanuts by Charles Schulz for February 12, 1986 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">8 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-87"><span class="mw-cite-backlink"><b><a href="#cite_ref-87">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2021/000670.html">"[Rd] R 4.1.0 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-88"><span class="mw-cite-backlink"><b><a href="#cite_ref-88">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1978" class="citation web cs1">Schulz, Charles (30 July 1978). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1978/07/30">"Peanuts by Charles Schulz for July 30, 1978 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-89"><span class="mw-cite-backlink"><b><a href="#cite_ref-89">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2021/000668.html">"[Rd] R 4.0.5 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-90"><span class="mw-cite-backlink"><b><a href="#cite_ref-90">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1959" class="citation web cs1">Schulz, Charles (2 March 1959). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1959/03/02">"Peanuts by Charles Schulz for March 02, 1959 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-91"><span class="mw-cite-backlink"><b><a href="#cite_ref-91">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz2006" class="citation web cs1">Schulz, Charles (27 February 2006). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/2006/02/27">"Peanuts by Charles Schulz for February 27, 2006 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-92"><span class="mw-cite-backlink"><b><a href="#cite_ref-92">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1959" class="citation web cs1">Schulz, Charles (13 March 1959). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1959/03/13">"Peanuts by Charles Schulz for March 13, 1959 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-93"><span class="mw-cite-backlink"><b><a href="#cite_ref-93">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2021/000664.html">"[Rd] R 4.0.4 scheduled for February 15"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-94"><span class="mw-cite-backlink"><b><a href="#cite_ref-94">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1972" class="citation web cs1">Schulz, Charles (23 October 1972). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1972/10/23">"Peanuts by Charles Schulz for October 23, 1972 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-95"><span class="mw-cite-backlink"><b><a href="#cite_ref-95">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2020/000662.html">"[Rd] R 4.0.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-96"><span class="mw-cite-backlink"><b><a href="#cite_ref-96">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1962" class="citation web cs1">Schulz, Charles (14 April 1962). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1962/04/14">"Peanuts by Charles Schulz for April 14, 1962 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-97"><span class="mw-cite-backlink"><b><a href="#cite_ref-97">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2020/000658.html">"R 4.0.2 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-98"><span class="mw-cite-backlink"><b><a href="#cite_ref-98">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1962" class="citation web cs1">Schulz, Charles (6 February 1962). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1962/02/06">"Peanuts by Charles Schulz for February 06, 1962 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-99"><span class="mw-cite-backlink"><b><a href="#cite_ref-99">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2020/000655.html">"R 4.0.1 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-100"><span class="mw-cite-backlink"><b><a href="#cite_ref-100">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1970" class="citation web cs1">Schulz, Charles (24 April 1970). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1970/04/24">"Peanuts by Charles Schulz for April 24, 1970 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-101"><span class="mw-cite-backlink"><b><a href="#cite_ref-101">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2020/000653.html">"R 4.0.0 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-102"><span class="mw-cite-backlink"><b><a href="#cite_ref-102">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz2000" class="citation web cs1">Schulz, Charles (29 February 2000). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/2000/02/29">"Peanuts by Charles Schulz for February 29, 2000 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-103"><span class="mw-cite-backlink"><b><a href="#cite_ref-103">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2020/000650.html">"R 3.6.3 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-104"><span class="mw-cite-backlink"><b><a href="#cite_ref-104">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1965" class="citation web cs1">Schulz, Charles (12 July 1965). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1965/07/12">"Peanuts by Charles Schulz for July 12, 1965 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-105"><span class="mw-cite-backlink"><b><a href="#cite_ref-105">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2019/000647.html">"R 3.6.2 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-auto1-106"><span class="mw-cite-backlink">^ <a href="#cite_ref-auto1_106-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-auto1_106-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFSchulz1971" class="citation web cs1">Schulz, Charles (22 March 1971). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1971/03/22">"Peanuts by Charles Schulz for March 22, 1971 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-107"><span class="mw-cite-backlink"><b><a href="#cite_ref-107">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2019/000643.html">"R 3.6.1 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-108"><span class="mw-cite-backlink"><b><a href="#cite_ref-108">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1963" class="citation web cs1">Schulz, Charles (3 March 1963). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1963/03/03">"Peanuts by Charles Schulz for March 03, 1963 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-109"><span class="mw-cite-backlink"><b><a href="#cite_ref-109">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2019/000641.html">"R 3.6.0 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-110"><span class="mw-cite-backlink"><b><a href="#cite_ref-110">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1959" class="citation web cs1">Schulz, Charles (11 March 1959). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1959/03/11">"Peanuts by Charles Schulz for March 11, 1959 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-111"><span class="mw-cite-backlink"><b><a href="#cite_ref-111">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2019/000638.html">"R 3.5.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-112"><span class="mw-cite-backlink"><b><a href="#cite_ref-112">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1960" class="citation web cs1">Schulz, Charles (25 January 1960). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1960/01/25">"Peanuts by Charles Schulz for January 25, 1960 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-113"><span class="mw-cite-backlink"><b><a href="#cite_ref-113">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2018/000634.html">"R 3.5.2 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-114"><span class="mw-cite-backlink"><b><a href="#cite_ref-114">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1972" class="citation web cs1">Schulz, Charles (9 March 1972). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1972/03/09">"Peanuts by Charles Schulz for March 09, 1972 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-115"><span class="mw-cite-backlink"><b><a href="#cite_ref-115">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2018/000630.html">"R 3.5.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-116"><span class="mw-cite-backlink"><b><a href="#cite_ref-116">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1973" class="citation web cs1">Schulz, Charles (27 January 1973). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1973/01/27">"Peanuts by Charles Schulz for January 27, 1973 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-117"><span class="mw-cite-backlink"><b><a href="#cite_ref-117">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2018/000628.html">"R 3.5.0 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-118"><span class="mw-cite-backlink"><b><a href="#cite_ref-118">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240407212529/https://collectpeanuts.com/Collection/ImagesW/Plaques/201405/IMG_4892.jpg">"It's nice to have a friend you can lean on"</a>. Archived from <a rel="nofollow" class="external text" href="https://collectpeanuts.com/Collection/ImagesW/Plaques/201405/IMG_4892.jpg">the original</a> on 7 April 2024.</cite></span>
</li>
<li id="cite_note-119"><span class="mw-cite-backlink"><b><a href="#cite_ref-119">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://thumbs.worthpoint.com/zoom/images1/1/0418/30/peanuts-snoopy-charlie-brown-friend_1_505bef366e5738e429106a1f6e0f3acc.jpg">"Peanuts Snoopy Charlie Brown A Friend is Someone you can lean on metal tin sign"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">17 April</span> 2025</span>.</cite></span>
</li>
<li id="cite_note-120"><span class="mw-cite-backlink"><b><a href="#cite_ref-120">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://thumbs.worthpoint.com/zoom/images1/1/0816/08/peanuts-snoopy-charlie-brown-friend_1_72eea89e06dae9d6b8838d4ee532877c.jpg">"Peanuts Snoopy &amp; Charlie Brown Friend Is Someone You Can Lean On Fire-King Mug"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">17 April</span> 2025</span>.</cite></span>
</li>
<li id="cite_note-121"><span class="mw-cite-backlink"><b><a href="#cite_ref-121">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2018/000626.html">"R 3.4.4 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-122"><span class="mw-cite-backlink"><b><a href="#cite_ref-122">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (19 February 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/02/19">"Peanuts by Charles Schulz for February 19, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-123"><span class="mw-cite-backlink"><b><a href="#cite_ref-123">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2017/000623.html">"R 3.4.3 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-124"><span class="mw-cite-backlink"><b><a href="#cite_ref-124">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2017/000619.html">"R 3.4.2 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-auto-125"><span class="mw-cite-backlink">^ <a href="#cite_ref-auto_125-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-auto_125-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFSchulz1965" class="citation web cs1">Schulz, Charles (9 September 1965). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1965/09/09">"Peanuts by Charles Schulz for September 09, 1965 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-126"><span class="mw-cite-backlink"><b><a href="#cite_ref-126">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://hypatia.math.ethz.ch/pipermail/r-announce/2017/000616.html">"R 3.4.1 is released"</a>. <i>hypatia.math.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-127"><span class="mw-cite-backlink"><b><a href="#cite_ref-127">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2017/000612.html">"R 3.4.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-128"><span class="mw-cite-backlink"><b><a href="#cite_ref-128">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1966" class="citation web cs1">Schulz, Charles (29 June 1966). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1966/06/29">"Peanuts by Charles Schulz for June 29, 1966 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-129"><span class="mw-cite-backlink"><b><a href="#cite_ref-129">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2017/000611.html">"[R] R 3.3.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-130"><span class="mw-cite-backlink"><b><a href="#cite_ref-130">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1968" class="citation web cs1">Schulz, Charles (30 October 1968). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1968/10/30">"Peanuts by Charles Schulz for October 30, 1968 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-131"><span class="mw-cite-backlink"><b><a href="#cite_ref-131">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000608.html">"[R] R 3.3.2 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-132"><span class="mw-cite-backlink"><b><a href="#cite_ref-132">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (15 June 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/06/15">"Peanuts by Charles Schulz for June 15, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-133"><span class="mw-cite-backlink"><b><a href="#cite_ref-133">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000604.html">"[R] R 3.3.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-134"><span class="mw-cite-backlink"><b><a href="#cite_ref-134">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1971" class="citation web cs1">Schulz, Charles (7 May 1971). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1971/05/07">"Peanuts by Charles Schulz for May 07, 1971 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-135"><span class="mw-cite-backlink"><b><a href="#cite_ref-135">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000602.html">"[R] R 3.3.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-:0-136"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_136-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_136-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><cite id="CITEREFSchulz1964" class="citation web cs1">Schulz, Charles (20 February 1964). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1964/02/20">"Peanuts by Charles Schulz for February 20, 1964 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-137"><span class="mw-cite-backlink"><b><a href="#cite_ref-137">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://svn.r-project.org/R/tags/R-3-2-5/VERSION-NICK">"VERSION-NICK"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-138"><span class="mw-cite-backlink"><b><a href="#cite_ref-138">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000601.html">"R 3.2.5 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-139"><span class="mw-cite-backlink"><b><a href="#cite_ref-139">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000598.html">"R 3.2.4-revised is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-140"><span class="mw-cite-backlink"><b><a href="#cite_ref-140">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2016/000597.html">"R 3.2.4 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-141"><span class="mw-cite-backlink"><b><a href="#cite_ref-141">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1980" class="citation web cs1">Schulz, Charles (18 December 1980). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1980/12/18">"Peanuts by Charles Schulz for December 18, 1980 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-142"><span class="mw-cite-backlink"><b><a href="#cite_ref-142">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2015/000593.html">"R 3.2.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-143"><span class="mw-cite-backlink"><b><a href="#cite_ref-143">^</a></b></span> <span class="reference-text"><cite id="CITEREFMarketScreener2008" class="citation web cs1">MarketScreener (7 October 2008). <a rel="nofollow" class="external text" href="https://www.marketscreener.com/quote/stock/METLIFE-INC-13496/news/METLIFE-Brush-Up-on-Fire-Safety-Basics-586095/">"METLIFE&nbsp;: Brush Up on Fire Safety Basics -October 07, 2008 at 04:03 pm EDT | MarketScreener"</a>. <i>www.marketscreener.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-144"><span class="mw-cite-backlink"><b><a href="#cite_ref-144">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.claimsjournal.com/news/national/2005/10/13/60817.htm">"MetLife Advises People to Brush Up on Fire Safety Basics to Stay Safe"</a>. <i>Claims Journal</i>. 12 October 2005<span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-145"><span class="mw-cite-backlink"><b><a href="#cite_ref-145">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2015/000589.html">"R 3.2.2 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-146"><span class="mw-cite-backlink"><b><a href="#cite_ref-146">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1969" class="citation web cs1">Schulz, Charles (10 March 1969). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1969/03/10">"Peanuts by Charles Schulz for March 10, 1969 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-147"><span class="mw-cite-backlink"><b><a href="#cite_ref-147">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2015/000586.html">"[R] R 3.2.1 liftoff"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-148"><span class="mw-cite-backlink"><b><a href="#cite_ref-148">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1966" class="citation web cs1">Schulz, Charles (7 April 1966). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1966/04/07">"Peanuts by Charles Schulz for April 07, 1966 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-149"><span class="mw-cite-backlink"><b><a href="#cite_ref-149">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2015/000583.html">"[R] R 3.2.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-150"><span class="mw-cite-backlink"><b><a href="#cite_ref-150">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz2019" class="citation book cs1">Schulz, Charles M. (2019). <i>Happiness is a warm puppy</i>. New York: Penguin Workshop. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&nbsp;<bdi>978-1-5247-8995-4</bdi>.</cite></span>
</li>
<li id="cite_note-151"><span class="mw-cite-backlink"><b><a href="#cite_ref-151">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2015/000582.html">"R 3.1.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-152"><span class="mw-cite-backlink"><b><a href="#cite_ref-152">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2014/000578.html">"[R] R 3.1.2 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-153"><span class="mw-cite-backlink"><b><a href="#cite_ref-153">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240409064756/https://i.ebayimg.com/images/g/9XoAAOSwI51iIBwR/s-l1600.webp">"Sock it to me"</a>. Archived from <a rel="nofollow" class="external text" href="https://i.ebayimg.com/images/g/9XoAAOSwI51iIBwR/s-l1600.webp">the original</a> on 9 April 2024.</cite></span>
</li>
<li id="cite_note-154"><span class="mw-cite-backlink"><b><a href="#cite_ref-154">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240409064756/https://cdn11.bigcommerce.com/s-qc6bb7/images/stencil/1280x1280/products/11697/21379/pzl7274__10391.1456100538.jpg?c=2">"Sock it to me"</a>. Archived from <a rel="nofollow" class="external text" href="https://cdn11.bigcommerce.com/s-qc6bb7/images/stencil/1280x1280/products/11697/21379/pzl7274__10391.1456100538.jpg?c=2">the original</a> on 9 April 2024.</cite></span>
</li>
<li id="cite_note-155"><span class="mw-cite-backlink"><b><a href="#cite_ref-155">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240409064756/https://i.etsystatic.com/12512391/r/il/23f45c/5091663835/il_680x540.5091663835_dqpa.jpg">"Sock it to me puzzle"</a>. Archived from <a rel="nofollow" class="external text" href="https://i.etsystatic.com/12512391/r/il/23f45c/5091663835/il_680x540.5091663835_dqpa.jpg">the original</a> on 9 April 2024.</cite></span>
</li>
<li id="cite_note-156"><span class="mw-cite-backlink"><b><a href="#cite_ref-156">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://collectpeanuts.com/toys/games-puzzles/puzzles/springbok/#foobox-1/14/IMG_1586.jpg?ssl=1">"Peanuts Springbok Puzzles"</a>.</cite></span>
</li>
<li id="cite_note-157"><span class="mw-cite-backlink"><b><a href="#cite_ref-157">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2014/000575.html">"[R] R 3.1.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
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</li>
<li id="cite_note-159"><span class="mw-cite-backlink"><b><a href="#cite_ref-159">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1965" class="citation web cs1">Schulz, Charles (11 January 1965). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1965/01/11">"Peanuts by Charles Schulz for January 11, 1965 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-160"><span class="mw-cite-backlink"><b><a href="#cite_ref-160">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2014/000569.html">"R 3.0.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-161"><span class="mw-cite-backlink"><b><a href="#cite_ref-161">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1971" class="citation web cs1">Schulz, Charles (3 September 1971). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1971/09/03">"Peanuts by Charles Schulz for September 03, 1971 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-164"><span class="mw-cite-backlink"><b><a href="#cite_ref-164">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2013/000563.html">"R 3.0.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-165"><span class="mw-cite-backlink"><b><a href="#cite_ref-165">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1981" class="citation web cs1">Schulz, Charles (23 June 1981). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1981/06/23">"Peanuts by Charles Schulz for June 23, 1981 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-166"><span class="mw-cite-backlink"><b><a href="#cite_ref-166">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2013/000561.html">"R 3.0.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-167"><span class="mw-cite-backlink"><b><a href="#cite_ref-167">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1965" class="citation web cs1">Schulz, Charles (23 October 1965). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1965/10/23">"Peanuts by Charles Schulz for October 23, 1965 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-168"><span class="mw-cite-backlink"><b><a href="#cite_ref-168">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2013/000560.html">"R 2.15.3 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-169"><span class="mw-cite-backlink"><b><a href="#cite_ref-169">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1969" class="citation web cs1">Schulz, Charles (31 October 1969). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1969/10/31">"Peanuts by Charles Schulz for October 31, 1969 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-170"><span class="mw-cite-backlink"><b><a href="#cite_ref-170">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2012/000557.html">"R 2.15.2 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-171"><span class="mw-cite-backlink"><b><a href="#cite_ref-171">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1987" class="citation web cs1">Schulz, Charles (6 June 1987). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1987/06/06">"Peanuts by Charles Schulz for June 06, 1987 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
</li>
<li id="cite_note-172"><span class="mw-cite-backlink"><b><a href="#cite_ref-172">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2012/000554.html">"R 2.15.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-173"><span class="mw-cite-backlink"><b><a href="#cite_ref-173">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1971" class="citation web cs1">Schulz, Charles (11 April 1971). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1971/04/11">"Peanuts by Charles Schulz for April 11, 1971 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-174"><span class="mw-cite-backlink"><b><a href="#cite_ref-174">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2012/000551.html">"R 2.15.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-175"><span class="mw-cite-backlink"><b><a href="#cite_ref-175">^</a></b></span> <span class="reference-text"><cite class="citation audio-visual cs1"><a rel="nofollow" class="external text" href="https://www.imdb.com/title/tt0071679/quotes/"><i>It's the Easter Beagle, Charlie Brown! (TV Short 1974) - Quotes - IMDb</i></a><span class="reference-accessdate">. Retrieved <span class="nowrap">8 April</span> 2024</span> – via www.imdb.com.</cite></span>
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<li id="cite_note-176"><span class="mw-cite-backlink"><b><a href="#cite_ref-176">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2012/000550.html">"R 2.14.2 is released + R anniversary"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-177"><span class="mw-cite-backlink"><b><a href="#cite_ref-177">^</a></b></span> <span class="reference-text"><cite id="CITEREFMcGough2023" class="citation web cs1">McGough, Nellah Bailey (20 January 2023). <a rel="nofollow" class="external text" href="https://www.southernliving.com/culture/charlie-brown-christmas-quotes">"Our Favorite Quotes and Sayings from "A Charlie Brown Christmas""</a>. <i>Southern Living</i><span class="reference-accessdate">. Retrieved <span class="nowrap">8 April</span> 2024</span>.</cite></span>
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<li id="cite_note-178"><span class="mw-cite-backlink"><b><a href="#cite_ref-178">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2011/000548.html">"R 2.14.1 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-179"><span class="mw-cite-backlink"><b><a href="#cite_ref-179">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1973" class="citation web cs1">Schulz, Charles (29 October 1973). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1973/10/29">"Peanuts by Charles Schulz for October 29, 1973 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-180"><span class="mw-cite-backlink"><b><a href="#cite_ref-180">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://stat.ethz.ch/pipermail/r-announce/2011/000544.html">"R 2.14.0 is released"</a>. <i>stat.ethz.ch</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-181"><span class="mw-cite-backlink"><b><a href="#cite_ref-181">^</a></b></span> <span class="reference-text"><cite id="CITEREFSchulz1967" class="citation web cs1">Schulz, Charles (17 August 1967). <a rel="nofollow" class="external text" href="https://www.gocomics.com/peanuts/1967/08/17">"Peanuts by Charles Schulz for August 17, 1967 | GoComics.com"</a>. <i>GoComics</i><span class="reference-accessdate">. Retrieved <span class="nowrap">7 April</span> 2024</span>.</cite></span>
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<li id="cite_note-184"><span class="mw-cite-backlink"><b><a href="#cite_ref-184">^</a></b></span> <span class="reference-text"><cite id="CITEREFTalbotDeVitoHanrahan2012" class="citation book cs1">Talbot, Justin; DeVito, Zachary; Hanrahan, Pat (1 January 2012). "Riposte: A trace-driven compiler and parallel VM for vector code in R". <i>Proceedings of the 21st international conference on Parallel architectures and compilation techniques</i>. ACM. pp.&nbsp;<span class="nowrap">43–</span>52. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1145%2F2370816.2370825">10.1145/2370816.2370825</a>. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&nbsp;<bdi>9781450311823</bdi>. <a href="S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a>&nbsp;<a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:1989369">1989369</a>.</cite></span>
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<li id="cite_note-185"><span class="mw-cite-backlink"><b><a href="#cite_ref-185">^</a></b></span> <span class="reference-text">Jackson, Joab (16 May 2013). <a rel="nofollow" class="external text" href="https://www.pcworld.com/article/2038944/tibco-offers-free-r-to-the-enterprise.html">TIBCO offers free R to the enterprise</a>. <i>PC World</i>. Retrieved 20 July 2015.</span>
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<li id="cite_note-186"><span class="mw-cite-backlink"><b><a href="#cite_ref-186">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://cloudblogs.microsoft.com/sqlserver/2021/06/30/looking-to-the-future-for-r-in-azure-sql-and-sql-server/">"Looking to the future for R in Azure SQL and SQL Server"</a>. 30 June 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">7 November</span> 2021</span>.</cite></span>
</li>
</ol></div></div>
<div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2></div>
<ul><li><cite id="CITEREFWickhamÇetinkaya-RundelGrolemund2023" class="citation book cs1">Wickham, Hadley; Çetinkaya-Rundel, Mine; Grolemund, Garrett (2023). <a rel="nofollow" class="external text" href="https://r4ds.hadley.nz/"><i>R for data science: import, tidy, transform, visualize, and model data</i></a> (2nd&nbsp;ed.). Beijing Boston Farnham Sebastopol Tokyo: <a href="O'Reilly_Media" title="O'Reilly Media">O'Reilly</a>. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&nbsp;<bdi>978-1-4920-9740-2</bdi>.</cite></li>
<li><cite id="CITEREFGagolewski2024" class="citation book cs1">Gagolewski, Marek (2024). <a rel="nofollow" class="external text" href="https://zenodo.org/record/7490464"><i>Deep R Programming</i></a>. <a href="Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.5281%2FZENODO.7490464">10.5281/ZENODO.7490464</a>. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a>&nbsp;<bdi>978-0-6455719-2-9</bdi>.</cite></li></ul>
<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><a rel="nofollow" class="external text" href="https://developer.r-project.org/TechDocs/">R Technical Papers</a></li>
<li><a rel="nofollow" class="external text" href="https://www.bigbookofr.com/">Big Book of R</a>, curated list of R-related programming books</li>
<li><a rel="nofollow" class="external text" href="https://www.r-project.org/doc/bib/R-books.html">Books Related to R - R Project</a>, partially annotated curated list of books relating to R or S.</li></ul>
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</style><div id="R_(programming_language)249" style="font-size:114%;margin:0 4em"></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink-fragment" href="#Programming_features">Features</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Sweave" title="Sweave">Sweave</a></li></ul>
</div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink-fragment" href="#Implementations">Implementations</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Distributed_R" title="Distributed R">Distributed R</a></li>
<li><a href="Microsoft_R_Open" class="mw-redirect" title="Microsoft R Open">Microsoft R Open</a> (Revolution R Open)</li>
<li><a href="Renjin" title="Renjin">Renjin</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="R_package" title="R package">Packages</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Bibliometrix" title="Bibliometrix">Bibliometrix</a></li>
<li><a href="Easystats" title="Easystats">easystats</a></li>
<li><a href="Quantitative_Discourse_Analysis_Package" title="Quantitative Discourse Analysis Package">qdap</a></li>
<li><a href="Lumi_(software)" title="Lumi (software)">lumi</a></li>
<li><a href="RGtk2" title="RGtk2">RGtk2</a></li>
<li><a href="Rhea_(pipeline)" title="Rhea (pipeline)">Rhea</a></li>
<li><a href="Rmetrics" title="Rmetrics">Rmetrics</a></li>
<li><a href="Rnn_(software)" title="Rnn (software)">rnn</a></li>
<li><a href="RQDA" title="RQDA">RQDA</a></li>
<li><a href="Shiny_(software)" class="mw-redirect" title="Shiny (software)">Shiny</a></li>
<li><a href="SimpleITK" title="SimpleITK">SimpleITK</a></li>
<li><a href="Statcheck" title="Statcheck">Statcheck</a></li>
<li><b><a href="Tidyverse" title="Tidyverse">tidyverse</a></b>
<ul><li><a href="Ggplot2" title="Ggplot2">ggplot2</a></li>
<li><a href="Dplyr" title="Dplyr">dplyr</a></li>
<li><a href="Knitr" title="Knitr">knitr</a></li></ul></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a class="mw-selflink-fragment" href="#Interfaces">Interfaces</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Emacs_Speaks_Statistics" title="Emacs Speaks Statistics">Emacs Speaks Statistics</a></li>
<li><a href="Java_GUI_for_R" title="Java GUI for R">Java GUI for R</a></li>
<li><a href="KH_Coder" title="KH Coder">KH Coder</a></li>
<li><a href="Rattle_GUI" title="Rattle GUI">Rattle GUI</a></li>
<li><a href="R_Commander" title="R Commander">R Commander</a></li>
<li><a href="RExcel" title="RExcel">RExcel</a></li>
<li><a href="RKWard" title="RKWard">RKWard</a></li>
<li><a href="RStudio" title="RStudio">RStudio</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Roger_Bivand" title="Roger Bivand">Roger Bivand</a></li>
<li><a href="Jenny_Bryan" title="Jenny Bryan">Jenny Bryan</a></li>
<li><a href="John_Chambers_(statistician)" title="John Chambers (statistician)">John Chambers</a></li>
<li><a href="Peter_Dalgaard" title="Peter Dalgaard">Peter Dalgaard</a></li>
<li><a href="Dirk_Eddelbuettel" title="Dirk Eddelbuettel">Dirk Eddelbuettel</a></li>
<li><a href="Robert_Gentleman_(statistician)" title="Robert Gentleman (statistician)">Robert Gentleman</a></li>
<li><a href="Ross_Ihaka" title="Ross Ihaka">Ross Ihaka</a></li>
<li><a href="Friedrich_Leisch" title="Friedrich Leisch">Friedrich Leisch</a></li>
<li><a href="Thomas_Lumley_(statistician)" title="Thomas Lumley (statistician)">Thomas Lumley</a></li>
<li><a href="Brian_D._Ripley" title="Brian D. Ripley">Brian D. Ripley</a></li>
<li><a href="Julia_Silge" title="Julia Silge">Julia Silge</a></li>
<li><a href="Luke_Tierney" title="Luke Tierney">Luke Tierney</a></li>
<li><a href="Hadley_Wickham" title="Hadley Wickham">Hadley Wickham</a></li>
<li><a href="Yihui_Xie" title="Yihui Xie">Yihui Xie</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organisations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="R_Consortium" class="mw-redirect" title="R Consortium">R Consortium</a></li>
<li><a href="Revolution_Analytics" title="Revolution Analytics">Revolution Analytics</a></li>
<li><a href="R-Ladies" title="R-Ladies">R-Ladies</a></li>
<li><a href="Posit_PBC" title="Posit PBC">Posit PBC</a> (formerly RStudio PBC)</li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Publications</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><i><a href="The_R_Journal" title="The R Journal">The R Journal</a></i></li></ul>
</div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="GNU_Project62" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="GNU_Project62" style="font-size:114%;margin:0 4em"><a href="GNU_Project" title="GNU Project">GNU Project</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">History</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="GNU_Manifesto" title="GNU Manifesto">GNU Manifesto</a></li>
<li><a href="Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a>
<ul><li><a href="Free_Software_Foundation_Europe" title="Free Software Foundation Europe">Europe</a></li>
<li><a href="Free_Software_Foundation_of_India" title="Free Software Foundation of India">India</a></li>
<li><a href="Free_Software_Foundation_Latin_America" title="Free Software Foundation Latin America">Latin America</a></li></ul></li>
<li><a href="History_of_free_and_open-source_software" title="History of free and open-source software">History of free software</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Licenses</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="GNU_General_Public_License" title="GNU General Public License">GNU General Public License</a>
<ul><li><a href="GPL_linking_exception" title="GPL linking exception">linking exception</a></li>
<li><a href="GPL_font_exception" title="GPL font exception">font exception</a></li></ul></li>
<li><a href="GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">GNU Lesser General Public License</a></li>
<li><a href="GNU_Affero_General_Public_License" title="GNU Affero General Public License">GNU Affero General Public License</a></li>
<li><a href="GNU_Free_Documentation_License" title="GNU Free Documentation License">GNU Free Documentation License</a></li>
<li><a href="GNAT_Modified_General_Public_License" title="GNAT Modified General Public License">GNAT Modified General Public License</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Software</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="GNU" title="GNU">GNU</a> (<a href="GNU_variants" title="GNU variants">variants</a>)</li>
<li><a href="GNU_Hurd" title="GNU Hurd">Hurd</a></li>
<li><a href="Linux-libre" title="Linux-libre">Linux-libre</a></li>
<li><a href="Glibc" title="Glibc">glibc</a></li>
<li><a href="Bash_(Unix_shell)" title="Bash (Unix shell)">Bash</a></li>
<li><a href="GNU_Core_Utilities" title="GNU Core Utilities">coreutils</a></li>
<li><a href="GNU_Find_Utilities" class="mw-redirect" title="GNU Find Utilities">findutils</a></li>
<li><a href="GNU_Autotools" title="GNU Autotools">Build system</a></li>
<li><a href="GNU_Compiler_Collection" title="GNU Compiler Collection">GCC</a></li>
<li><a href="GNU_Binutils" title="GNU Binutils">binutils</a></li>
<li><a href="GNU_Debugger" title="GNU Debugger">GDB</a></li>
<li><a href="GNU_GRUB" title="GNU GRUB">GRUB</a></li>
<li><a href="GNUstep" title="GNUstep">GNUstep</a></li>
<li><a href="GIMP" title="GIMP">GIMP</a></li>
<li><a href="Jami_(software)" title="Jami (software)">Jami</a></li>
<li><a href="GNU_Emacs" title="GNU Emacs">GNU Emacs</a></li>
<li><a href="GNU_TeXmacs" title="GNU TeXmacs">GNU TeXmacs</a></li>
<li><a href="GNU_Octave" title="GNU Octave">GNU Octave</a></li>
<li><a href="GNU_Taler" title="GNU Taler">GNU Taler</a></li>

<li><a href="GNU_Scientific_Library" title="GNU Scientific Library">GSL</a></li>
<li><a href="GNU_Multiple_Precision_Arithmetic_Library" title="GNU Multiple Precision Arithmetic Library">GMP</a></li>
<li><a href="Electric_(software)" title="Electric (software)">GNU Electric</a></li>
<li><a href="GNU_Archimedes" title="GNU Archimedes">GNU Archimedes</a></li>
<li><a href="GNUnet" title="GNUnet">GNUnet</a></li>
<li><a href="GNU_Privacy_Guard" title="GNU Privacy Guard">GNU Privacy Guard</a></li>
<li><a href="Gnuzilla" class="mw-redirect" title="Gnuzilla">Gnuzilla</a> (<a href="GNU_IceCat" title="GNU IceCat">IceCat</a>)</li>
<li><a href="GNU_Health" title="GNU Health">GNU Health</a></li>
<li><a href="GNUmed" title="GNUmed">GNUmed</a></li>
<li><a href="LilyPond" title="LilyPond">GNU LilyPond</a></li>
<li><a href="GNU_Go" title="GNU Go">GNU Go</a></li>
<li><a href="GNU_Chess" title="GNU Chess">GNU Chess</a></li>
<li><a href="Gnash_(software)" title="Gnash (software)">Gnash</a></li>
<li><a href="GNU_Guix" title="GNU Guix">Guix</a></li>
<li><a href="List_of_GNU_packages" title="List of GNU packages"><i>more...</i></a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Contributors</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Benjamin_Mako_Hill" title="Benjamin Mako Hill">Benjamin Mako Hill</a></li>
<li><a href="Bradley_M._Kuhn" title="Bradley M. Kuhn">Bradley M. Kuhn</a></li>
<li><a href="Brian_Fox_(programmer)" title="Brian Fox (programmer)">Brian Fox</a></li>
<li><a href="Federico_Heinz" class="mw-redirect" title="Federico Heinz">Federico Heinz</a></li>
<li><a href="William_John_Sullivan" title="William John Sullivan">John Sullivan</a></li>
<li>Nagarjuna G.</li>
<li><a href="Richard_Stallman" title="Richard Stallman">Richard M. Stallman</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other topics</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="GNU/Linux_naming_controversy" title="GNU/Linux naming controversy">GNU/Linux naming controversy</a></li>
<li><i><a href="Revolution_OS" title="Revolution OS">Revolution OS</a></i></li>
<li><a href="Free_Software_Foundation_anti-Windows_campaigns" title="Free Software Foundation anti-Windows campaigns">Free Software Foundation anti-Windows campaigns</a></li>
<li><a href="Defective_by_Design" title="Defective by Design">Defective by Design</a></li></ul>
</div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Numerical-analysis_software146" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Numerical-analysis_software146" style="font-size:114%;margin:0 4em"><a href="List_of_numerical-analysis_software" title="List of numerical-analysis software">Numerical-analysis software</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Free</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Advanced_Simulation_Library" title="Advanced Simulation Library">Advanced Simulation Library</a></li>
<li><a href="ADMB" title="ADMB">ADMB</a></li>
<li><a href="Chapel_(programming_language)" title="Chapel (programming language)">Chapel</a></li>
<li><a href="Euler_Mathematical_Toolbox" title="Euler Mathematical Toolbox">Euler Mathematical Toolbox</a></li>
<li><a href="FreeFem%2B%2B" title="FreeFem++">FreeFem++</a></li>
<li><a href="FreeMat" title="FreeMat">FreeMat</a></li>
<li><a href="Genius_(mathematics_software)" title="Genius (mathematics software)">Genius</a></li>
<li><a href="Gmsh" title="Gmsh">Gmsh</a></li>
<li><a href="GNU_Octave" title="GNU Octave">GNU Octave</a></li>
<li><a href="Gretl" title="Gretl">gretl</a></li>
<li><a href="Julia_(programming_language)" title="Julia (programming language)">Julia</a></li>
<li><a href="Project_Jupyter" title="Project Jupyter">Jupyter</a> (<i>Ju</i>lia, <i>Pyt</i>hon, <i>R</i>; <a href="IPython" title="IPython">IPython</a>)</li>
<li><a href="MFEM" title="MFEM">MFEM</a></li>
<li><a href="OpenFOAM" title="OpenFOAM">OpenFOAM</a></li>
<li><a href="Python_(programming_language)" title="Python (programming language)">Python</a></li>

<li><a href="SageMath" title="SageMath">SageMath</a></li>
<li><a href="Salome_(software)" title="Salome (software)">Salome</a></li>
<li><a href="ScicosLab" title="ScicosLab">ScicosLab</a></li>
<li><a href="Scilab" title="Scilab">Scilab</a></li>
<li><a href="X10_(programming_language)" title="X10 (programming language)">X10</a></li>
<li><a href="Weka_(software)" title="Weka (software)">Weka</a></li></ul>
</div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Discontinued12" scope="row" class="navbox-group" style="width:1%">Discontinued</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Fortress_(programming_language)" title="Fortress (programming language)">Fortress</a></li></ul>
</div></td></tr></tbody></table><div>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Proprietary</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="DADiSP" title="DADiSP">DADiSP</a></li>
<li><a href="FEATool_Multiphysics" title="FEATool Multiphysics">FEATool Multiphysics</a></li>
<li><a href="GAUSS_(software)" title="GAUSS (software)">GAUSS</a></li>
<li><a href="LabVIEW" title="LabVIEW">LabVIEW</a></li>
<li><a href="Maple_(software)" title="Maple (software)">Maple</a></li>
<li><a href="Mathcad" title="Mathcad">Mathcad</a></li>
<li><a href="Wolfram_Mathematica" class="mw-redirect" title="Wolfram Mathematica">Mathematica</a></li>
<li><a href="MATLAB" title="MATLAB">MATLAB</a></li>
<li><a href="MWorks" title="MWorks">MWorks</a></li>
<li><a href="SAS_(software)" title="SAS (software)">SAS</a> (<a href="SAS_Viya" title="SAS Viya">SAS Viya</a>)</li>
<li><a href="Speakeasy_(computational_environment)" title="Speakeasy (computational environment)">Speakeasy</a></li>
<li><a href="VisSim" title="VisSim">VisSim</a></li></ul>
</div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="2"><div>
<ul><li><b><a href="Comparison_of_numerical-analysis_software" title="Comparison of numerical-analysis software">Comparison</a></b></li></ul>
</div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Statistical_software284" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Statistical_software284" style="font-size:114%;margin:0 4em"><a href="List_of_statistical_software" title="List of statistical software">Statistical software</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Public-domain_software" title="Public-domain software">Public domain</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Dataplot" title="Dataplot">Dataplot</a></li>
<li><a href="Epi_Info" title="Epi Info">Epi Info</a></li>
<li><a href="CSPro" title="CSPro">CSPro</a></li>
<li><a href="X-12-ARIMA" class="mw-redirect" title="X-12-ARIMA">X-12-ARIMA</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Open-source_software" title="Open-source software">Open-source</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="ADMB" title="ADMB">ADMB</a></li>
<li><a href="DAP_(software)" title="DAP (software)">DAP</a></li>
<li><a href="Gretl" title="Gretl">gretl</a></li>
<li><a href="Jamovi" title="Jamovi">jamovi</a></li>
<li><a href="JASP" title="JASP">JASP</a></li>
<li><a href="Just_another_Gibbs_sampler" title="Just another Gibbs sampler">JAGS</a></li>
<li><a href="JMulTi" title="JMulTi">JMulTi</a></li>
<li><a href="Julia_(programming_language)" title="Julia (programming language)">Julia</a></li>
<li><a href="Project_Jupyter" title="Project Jupyter">Jupyter</a> (<i>Ju</i>lia, <i>Py</i>thon, <i>R</i>)</li>
<li><a href="GNU_Octave" title="GNU Octave">GNU Octave</a></li>
<li><a href="OpenBUGS" title="OpenBUGS">OpenBUGS</a></li>
<li><a href="Orange_(software)" title="Orange (software)">Orange</a></li>
<li><a href="PSPP" title="PSPP">PSPP</a></li>
<li><a href="Python_(programming_language)" title="Python (programming language)">Python</a> (statsmodels, <a href="PyMC3" class="mw-redirect" title="PyMC3">PyMC3</a>, <a href="IPython" title="IPython">IPython</a>, <a href="IDLE" title="IDLE">IDLE</a>)</li>
<li> (<a href="RStudio" title="RStudio">RStudio</a>)</li>
<li><a href="SageMath" title="SageMath">SageMath</a></li>
<li><a href="SimFiT" title="SimFiT">SimFiT</a></li>
<li><a href="SOFA_Statistics" title="SOFA Statistics">SOFA Statistics</a></li>
<li><a href="Stan_(software)" title="Stan (software)">Stan</a></li>
<li><a href="XLispStat" title="XLispStat">XLispStat</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Freeware" title="Freeware">Freeware</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="BV4.1_(software)" title="BV4.1 (software)">BV4.1</a></li>
<li><a href="CumFreq" title="CumFreq">CumFreq</a></li>
<li><a href="SegReg" title="SegReg">SegReg</a></li>
<li><a href="XploRe" title="XploRe">XploRe</a></li>
<li><a href="WinBUGS" title="WinBUGS">WinBUGS</a></li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Commercial_software" title="Commercial software">Commercial</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Cross-platform_software" title="Cross-platform software">Cross-platform</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Data_Desk" title="Data Desk">Data Desk</a></li>
<li><a href="GAUSS_(software)" title="GAUSS (software)">GAUSS</a></li>
<li><a href="GraphPad_InStat" class="mw-redirect" title="GraphPad InStat">GraphPad InStat</a></li>
<li><a href="GraphPad_Prism" class="mw-redirect" title="GraphPad Prism">GraphPad Prism</a></li>
<li>IBM <a href="SPSS" title="SPSS">SPSS</a> Statistics</li>
<li>IBM <a href="SPSS_Modeler" title="SPSS Modeler">SPSS Modeler</a></li>
<li><a href="JMP_(statistical_software)" title="JMP (statistical software)">JMP</a></li>
<li><a href="Maple_(software)" title="Maple (software)">Maple</a></li>
<li><a href="Mathcad" title="Mathcad">Mathcad</a></li>
<li><a href="Wolfram_Mathematica" class="mw-redirect" title="Wolfram Mathematica">Mathematica</a></li>
<li><a href="MATLAB" title="MATLAB">MATLAB</a></li>
<li><a href="OxMetrics" title="OxMetrics">OxMetrics</a></li>
<li><a href="RATS_(software)" title="RATS (software)">RATS</a></li>
<li><a href="Revolution_Analytics" title="Revolution Analytics">Revolution Analytics</a></li>
<li><a href="SAS_(software)" title="SAS (software)">SAS</a> (<a href="SAS_Viya" title="SAS Viya">SAS Viya</a>)</li>
<li><a href="SmartPLS" title="SmartPLS">SmartPLS</a></li>
<li><a href="Stata" title="Stata">Stata</a></li>
<li><a href="StatView" title="StatView">StatView</a></li>
<li><a href="SUDAAN" title="SUDAAN">SUDAAN</a></li>
<li><a href="S-PLUS" title="S-PLUS">S-PLUS</a></li>
<li><a href="TSP_(econometrics_software)" title="TSP (econometrics software)">TSP</a></li>
<li><a href="World_Programming_System" title="World Programming System">World Programming System</a> (WPS)</li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Microsoft_Windows" title="Microsoft Windows">Windows</a> only</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="BMDP" title="BMDP">BMDP</a></li>
<li><a href="EViews" title="EViews">EViews</a></li>
<li><a href="Genstat" title="Genstat">GenStat</a></li>
<li><a href="LIMDEP" title="LIMDEP">LIMDEP</a></li>
<li><a href="LISREL" title="LISREL">LISREL</a></li>
<li><a href="MedCalc" title="MedCalc">MedCalc</a></li>
<li><a href="Microfit" title="Microfit">Microfit</a></li>
<li><a href="Minitab" title="Minitab">Minitab</a></li>
<li><a href="MLwiN" title="MLwiN">MLwiN</a></li>
<li><a href="NCSS_(statistical_software)" title="NCSS (statistical software)">NCSS</a></li>
<li><a href="Shazam_(econometrics_software)" title="Shazam (econometrics software)">Shazam</a></li>
<li><a href="SigmaStat" title="SigmaStat">SigmaStat</a></li>
<li><a href="Statistica" title="Statistica">Statistica</a></li>
<li><a href="StatsDirect" title="StatsDirect">StatsDirect</a></li>
<li><a href="StatXact" title="StatXact">StatXact</a></li>
<li><a href="SYSTAT_(statistics_package)" title="SYSTAT (statistics package)">SYSTAT</a></li>
<li><a href="The_Unscrambler" title="The Unscrambler">The Unscrambler</a></li>
<li>Unistat</li></ul>
</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Microsoft_Excel" title="Microsoft Excel">Excel</a> add-ons</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Analyse-it" title="Analyse-it">Analyse-it</a></li>
<li>Unistat for Excel</li>
<li><a href="XLfit" title="XLfit">XLfit</a></li>
<li><a href="RExcel" title="RExcel">RExcel</a></li></ul>
</div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><b><a href="Comparison_of_statistical_packages" title="Comparison of statistical packages">Comparison</a></b> • <b>Category</b></div></td></tr></tbody></table></div>
<div class="navbox-styles"></div><div role="navigation" class="navbox" aria-labelledby="Programming_languages625" style="padding:3px"><table class="nowraplinks hlist mw-collapsible expanded navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Programming_languages625" style="font-size:114%;margin:0 4em"><a href="Programming_language" title="Programming language">Programming languages</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div>
<ul><li><a href="Comparison_of_programming_languages" title="Comparison of programming languages">Comparison</a></li>
<li><a href="Timeline_of_programming_languages" title="Timeline of programming languages">Timeline</a></li>
<li><a href="History_of_programming_languages" title="History of programming languages">History</a></li></ul>
</div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">
<ul><li><a href="Ada_(programming_language)" title="Ada (programming language)">Ada</a></li>
<li><a href="ALGOL" title="ALGOL">ALGOL</a>
<ul><li><a href="Simula" title="Simula">Simula</a></li></ul></li>
<li><a href="APL_(programming_language)" title="APL (programming language)">APL</a></li>
<li><a href="Assembly_language" title="Assembly language">Assembly</a></li>
<li><a href="BASIC" title="BASIC">BASIC</a>
<ul><li><a href="Visual_Basic" title="Visual Basic">Visual Basic</a>
<ul><li><a href="Visual_Basic_(classic)" title="Visual Basic (classic)">classic</a></li>
<li><a href="Visual_Basic_(.NET)" title="Visual Basic (.NET)">.NET</a></li></ul></li></ul></li>
<li><a href="C_(programming_language)" title="C (programming language)">C</a></li>
<li><a href="C%2B%2B" title="C++">C++</a></li>
<li><a href="C_Sharp_(programming_language)" title="C Sharp (programming language)">C#</a></li>
<li><a href="COBOL" title="COBOL">COBOL</a></li>
<li><a href="Erlang_(programming_language)" title="Erlang (programming language)">Erlang</a>
<ul><li><a href="Elixir_(programming_language)" title="Elixir (programming language)">Elixir</a></li></ul></li>
<li><a href="Forth_(programming_language)" title="Forth (programming language)">Forth</a></li>
<li><a href="Fortran" title="Fortran">Fortran</a></li>
<li><a href="Go_(programming_language)" title="Go (programming language)">Go</a></li>
<li><a href="Haskell" title="Haskell">Haskell</a></li>
<li><a href="Java_(programming_language)" title="Java (programming language)">Java</a></li>
<li><a href="JavaScript" title="JavaScript">JavaScript</a></li>
<li><a href="Julia_(programming_language)" title="Julia (programming language)">Julia</a></li>
<li><a href="Kotlin_(programming_language)" title="Kotlin (programming language)">Kotlin</a></li>
<li><a href="Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a></li>
<li><a href="Lua" title="Lua">Lua</a></li>
<li><a href="MATLAB" title="MATLAB">MATLAB</a></li>
<li><a href="ML_(programming_language)" title="ML (programming language)">ML</a>
<ul><li><a href="Caml" title="Caml">Caml </a>
<ul><li><a href="OCaml" title="OCaml">OCaml</a></li></ul></li></ul></li>
<li><a href="Pascal_(programming_language)" title="Pascal (programming language)">Pascal</a>
<ul><li><a href="Object_Pascal" title="Object Pascal">Object Pascal</a></li></ul></li>
<li><a href="Perl" title="Perl">Perl </a>
<ul><li><a href="Raku_(programming_language)" title="Raku (programming language)">Raku</a></li></ul></li>
<li><a href="PHP" title="PHP">PHP</a></li>
<li><a href="Prolog" title="Prolog">Prolog</a></li>
<li><a href="Python_(programming_language)" title="Python (programming language)">Python</a></li>

<li><a href="Ruby_(programming_language)" title="Ruby (programming language)">Ruby</a></li>
<li><a href="Rust_(programming_language)" title="Rust (programming language)">Rust</a></li>
<li><a href="SAS_language" title="SAS language">SAS</a></li>
<li><a href="SQL" title="SQL">SQL</a></li>
<li><a href="Scratch_(programming_language)" title="Scratch (programming language)">Scratch</a></li>
<li><a href="Shell_script" title="Shell script">Shell</a></li>
<li><a href="Smalltalk" title="Smalltalk">Smalltalk</a></li>
<li><a href="Swift_(programming_language)" title="Swift (programming language)">Swift</a></li>
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<li><a href="Generational_list_of_programming_languages" title="Generational list of programming languages">Generational</a></li>
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