Waterfall plot

{{Short description|Data visualization technique}}

{{distinguish|text=Waterfall charts, 2D floating-column diagram showing increases and decreases.}}

{{redirect|Waterfall display|the hardware|Waterfall display (hardware)}}

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Waterfall plots are often used to show how two-dimensional phenomena change over time.{{cite web |last1=Glen |first1=Stephanie |title=Waterfall Plot / Chart: Definition, Types & Examples |url=https://www.statisticshowto.com/waterfall-plot/ |website=statisticshowto.com |access-date=13 October 2021}} A three-dimensional spectral waterfall plot is a plot in which multiple curves of data, typically spectra, 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 rotational speed. Waterfall plots are also often used to depict spectrograms or cumulative spectral decay{{Definition needed|date=December 2021}} (CSD).