[Octave-bug-tracker] [bug #40751] cov(x, x) doesn't return the same result as in Matlab

[Rik]

Follow-up Comment #1, bug #40751 (project octave):

According to Matlab's documentation, cov (x,y) is equivalent to


cov ([x(:), y(:)]


and in Octave doing 


x = reshape ((1:16).^2, 4, 4);
cov ([x(:), x(:)])
ans =

   6.9315e+03   6.9315e+03
   6.9315e+03   6.9315e+03


I don't know if this is a recent change in Matlab's behavior or not, but the
fix looks simple.  The m-file can just be changed to use the new definition.


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