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Entropy

version 1.0.0.0 (1.55 KB) by Will Dwinnell
Calculates the sample entropy, in bits, of discrete variables.

7.7K Downloads

Updated 12 Sep 2010

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Entropy: Returns entropy (in bits) of each column of 'X'

by Will Dwinnell

H = Entropy(X)

H = row vector of calculated entropies (in bits)
X = data to be analyzed

Note 1: Each distinct value in X is considered a unique value.

Note 2: Estimated entropy values are slightly less than true,
due to finite sample size.

Example:

X = ceil(repmat([2 4 8 16],[1e3,1]) .* rand(1e3,4));
Entropy(X)

Cite As

Will Dwinnell (2021). Entropy (https://www.mathworks.com/matlabcentral/fileexchange/28692-entropy), MATLAB Central File Exchange. Retrieved .

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

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