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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Waterfall plot</span></span>
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</style><div role="note" class="hatnote navigation-not-searchable">Not to be confused with <a href="Waterfall_chart" title="Waterfall chart">Waterfall charts</a>, 2D floating-column diagram showing increases and decreases..</div>
<div role="note" class="hatnote navigation-not-searchable">"Waterfall display" redirects here. For the hardware, see <a href="Waterfall_display_(hardware)" class="mw-redirect" title="Waterfall display (hardware)">Waterfall display (hardware)</a>.</div>
<p><b>Waterfall plots</b> are often used to show how two-dimensional phenomena change over time.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> A three-dimensional <i>spectral waterfall plot</i> is a plot in which multiple curves of data, typically <a href="Spectrum" title="Spectrum">spectra</a>, are displayed simultaneously. Typically the curves are staggered both across the screen and vertically, with "nearer" curves masking the ones behind. The result is a series of "mountain" shapes that appear to be side by side. The waterfall plot is often used to show how two-dimensional information changes over time or some other variable such as <a href="Rotational_speed" class="mw-redirect" title="Rotational speed">rotational speed</a>. Waterfall plots are also often used to depict <i><a href="Spectrogram" title="Spectrogram">spectrograms</a></i> or <i>cumulative spectral decay</i> (CSD).
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<div class="mw-heading mw-heading2"><h2 id="Uses">Uses</h2></div>
<ul><li>The results of <a href="Spectral_density_estimation" title="Spectral density estimation">spectral density estimation</a>, showing the spectrum of the signal at successive intervals of time.</li>
<li>The <a href="Latency_(audio)" title="Latency (audio)">delayed response</a> from a <a href="Loudspeaker" title="Loudspeaker">loudspeaker</a> or <a href="Listening_room" class="mw-redirect" title="Listening room">listening room</a> produced by <a href="Impulse_response" title="Impulse response">impulse response</a> testing or <a href="MLSSA" class="mw-redirect" title="MLSSA">MLSSA</a>.</li>
<li>Spectra at different engine speeds when testing engines.</li></ul>
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<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Loudspeaker_acoustics" title="Loudspeaker acoustics">Loudspeaker acoustics</a></li>
<li><a href="Loudspeaker_measurement" title="Loudspeaker measurement">Loudspeaker measurement</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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</style><cite id="CITEREFGlen2018" class="citation web cs1">Glen, Stephanie (11 January 2018). <a rel="nofollow" class="external text" href="https://www.statisticshowto.com/waterfall-plot/">"Waterfall Plot / Chart: Definition, Types & Examples"</a>. <i>statisticshowto.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">13 October</span> 2021</span>.</cite></span>
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<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>
<ul><li><a rel="nofollow" class="external text" href="http://blog.prosig.com/2007/06/24/measuring-torsional-crank-shaft-jitter/">Typical engine vibration waterfall</a></li>
<li><a rel="nofollow" class="external text" href="http://vibrationdata.wordpress.com/2012/10/18/waterfall-fft/">Waterfall FFT Matlab script</a></li></ul></div><!--htdig_noindex--><div><div class="zim-footer">
This article is issued from <a class="external text" title="Last edited on 2025-07-12" href="https://en.wikipedia.org/wiki/?title=Waterfall_plot&oldid=1300118262">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.
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