Mutual Information

Calculates the mutual information between two discrete variables (or a group and a single variable).
Updated 3 Jan 2012

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MutualInformation: returns mutual information (in bits) of discrete variables 'X' and 'Y'

I = MutualInformation(X,Y);

I = calculated mutual information (in bits)
X = variable(s) to be analyzed (column vector)
Y = variable to be analyzed (column vector)

Note 1: Multiple variables may be handled jointly as columns in
matrix 'X'.
Note 2: Requires the 'Entropy' and 'JointEntropy' functions.

Cite As

Will Dwinnell (2024). Mutual Information (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R12
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes

I have updated the description to clarify the use of this routine.