Error in entropy function

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Sadiq Akbar
Sadiq Akbar 2020-10-27
评论： Sadiq Akbar 2020-10-27
I use the entropy function given belwo for my data, but Matlab gives me an error.
e=entropy(x,'shannon')
Matlab gives me this error:
Error using entropy>ParseInputs (line 58)
Too many input arguments.
Error in entropy (line 38)
I = ParseInputs(varargin{:});

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回答（1 个）

Walter Roberson
Walter Roberson 2020-10-27
The entropy function only permits a single parameter.
You are probably thinking of the wentropy function, which does permit 'shannon' as a second parameter.
  2 个评论
Sadiq Akbar
Sadiq Akbar 2020-10-27
Thank you dear Walter Roberson for your response.
Sadiq Akbar
Sadiq Akbar 2020-10-27
Dear Walter Roberson my code became now like this:
clear all
clc
load 2sn0_sorted;
fitness2sn0=one;
fitness2sn0=sort(fitness2sn0,'descend');
entropy1=wentropy(fitness2sn0,'shannon')
but it gives me a -ve value. Is it possible?

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