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[Octave-bug-tracker] [bug #40751] cov(x, x) doesn't return the same resu
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From: |
Julien Bect |
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Subject: |
[Octave-bug-tracker] [bug #40751] cov(x, x) doesn't return the same result as in Matlab |
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Date: |
Sun, 01 Dec 2013 08:12:36 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:25.0) Gecko/20100101 Firefox/25.0 |
Follow-up Comment #2, bug #40751 (project octave):
As far as I can tell, Matlab's cov() has always behaved like this.
corr(), on the other hand, has a different behaviour. Perhaps because it is a
function from the statistics toolbox, not a base Matlab function.
By the way, corrcoef() suffers from exactly the same problem. (Why is there
currently a warning indicating that corrcoef will be removed in a future
version of Octave ?)
So, it seems that both cov() and corrcoef() have to be fixed. In fact,
corrcoef() should be fixed automatically once cov() is fixed, since it is
based on it.
I will do this when I have time, if nobody does it before ;-)
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