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cov.m: Document intentional Matlab incompatibility (bug #40751). cov.m: Document intentional Matlab incompatibility (bug #40751).
author Rik <rik@octave.org>
date Fri, 03 Jan 2014 12:36:17 -0800
parents d63878346099
children 4197fc428c7d
comparison
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18199:2fbfeacf43f4 18207:48dafd739840
53 ## covariance [default] 53 ## covariance [default]
54 ## 54 ##
55 ## @item 1: 55 ## @item 1:
56 ## normalize with @math{N}, this provides the second moment around the mean 56 ## normalize with @math{N}, this provides the second moment around the mean
57 ## @end table 57 ## @end table
58 ##
59 ## @sc{matlab} compatibility: Octave always computes the covariance matrix.
60 ## For two inputs, however, @sc{matlab} will calculate
61 ## @code{cov (@var{x}(:), @var{y}(:))} whenever the number of elements in
62 ## @var{x} and @var{y} are equal. This will result in a scalar rather than
63 ## a matrix output. Code relying on this odd definition will need to be
64 ## changed when running in Octave.
58 ## @seealso{corr} 65 ## @seealso{corr}
59 ## @end deftypefn 66 ## @end deftypefn
60 67
61 ## Author: KH <Kurt.Hornik@wu-wien.ac.at> 68 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
62 ## Description: Compute covariances 69 ## Description: Compute covariances