1 ## Copyright (C) 1995-2012 Kurt Hornik
3 ## This file is part of Octave.
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 3 of the License, or (at
8 ## your option) any later version.
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>.
20 ## @deftypefn {Function File} {} cor (@var{x})
21 ## @deftypefnx {Function File} {} cor (@var{x}, @var{y})
22 ## Compute matrix of correlation coefficients.
24 ## This is an alias for @code{corrcoef}.
28 function retval = cor (x, y = x)
30 persistent warned = false;
33 warning ("Octave:deprecated-function",
34 "cor is obsolete and will be removed from a future version of Octave; please use corr instead");
37 if (nargin < 1 || nargin > 2)
41 retval = corrcoef (x, y);
48 %! assert (cor (x), corrcoef (x), 5*eps);
49 %! assert (cor (x(:,1), x(:,2)) == corrcoef (x(:,1), x(:,2)));
51 %% Test input validation
53 %!error corrcoef (1, 2, 3);