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Conditionally colored line plot

Version 1.1 (3.62 KB) by Matt Tearle
Plots (2D line) graph split into two colors above and below a given threshold value
3.8
(6)

1.7K Downloads

Updated 3 Mar 2020

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Plots vectors x & y using one color for when y is greater than a given threshold value, and another color when y is less than the threshold.
You can optionally specify any standard formatting string that PLOT accepts (eg 'rx:' for a red dotted line with cross markers).

The plotting follows the standard MATLAB PLOT approach of linearly interpolating between data values. The coloring/linestyle changes at y = threshold, even on the interpolated line.

Cite As

Matt Tearle (2023). Conditionally colored line plot (https://www.mathworks.com/matlabcentral/fileexchange/30423-conditionally-colored-line-plot), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010b
Compatible with any release
Platform Compatibility
Windows macOS Linux
Categories
Find more on Line Plots in Help Center and MATLAB Answers
Acknowledgements

Inspired: Conditionally Colored Plot (CCPLOT)

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Version Published Release Notes
1.1

Made a quick hack to the input-parsing utility to deal with the change in precedence rules. It should now work in 19b and in previous versions. Hasn't been really thoroughly tested, though, so please report any problems.
1.0.0.1

Updated license
1.0.0.0