Short code to create shading around a mean. Input is a matrix with rows of observations.
Updated 5 Dec 2020

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usage: stdshade(amatrix,alpha,acolor,F,smth)
plot mean and standard deviations(std) coming from a matrix of data, at which each row is an observation. std can be changed to standard error of the mean(sem) in the code. sem/std is shown as shading.

- acolor defines the used color (default is red)
- F assignes the used x axis (default is steps of 1).
- alpha defines transparency of the shading (default is no shading and black mean line)
- smth defines the smoothing factor (default is no smooth)

Cite As

Simon Musall (2024). stdshade (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2007b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

support for numerical color values

added handles for mean lines and fill area. Can be used when calling 'legend' with multiple variables.

added correction to ensure odd filter length

Replaced smooth function with simple boxcar filter to avoid problems with function call.

fixed known spelling errors

Minor changes:
shorter name
mean line uses selected color
transparency can be excluded