1 ## Copyright (C) 2001 Paul Kienzle <pkienzle@users.sf.net>
3 ## This program is free software; you can redistribute it and/or modify it under
4 ## the terms of the GNU General Public License as published by the Free Software
5 ## Foundation; either version 3 of the License, or (at your option) any later
8 ## This program is distributed in the hope that it will be useful, but WITHOUT
9 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
13 ## You should have received a copy of the GNU General Public License along with
14 ## this program; if not, see <http://www.gnu.org/licenses/>.
17 ## @deftypefn {Function File} {[@var{v}, @var{idx}] =} nanmax (@var{X})
18 ## @deftypefnx{Function File} {[@var{v}, @var{idx}] =} nanmax (@var{X}, @var{Y})
19 ## Find the maximal element while ignoring NaN values.
21 ## @code{nanmax} is identical to the @code{max} function except that NaN values
22 ## are ignored. If all values in a column are NaN, the maximum is
23 ## returned as NaN rather than [].
25 ## @seealso{max, nansum, nanmin, nanmean, nanmedian}
28 function [v, idx] = nanmax (X, Y, DIM)
29 if nargin < 1 || nargin > 3
31 elseif nargin == 1 || (nargin == 2 && isempty(Y))
35 v(all(nanvals)) = NaN;
36 elseif (nargin == 3 && isempty(Y))
40 v(all(nanvals,DIM)) = NaN;