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comparison main/statistics/mad.m @ 0:6b33357c7561 octave-forge

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Initial revision
author pkienzle
date Wed, 10 Oct 2001 19:54:49 +0000
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children b4f3962ed9ce
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-1:000000000000 0:6b33357c7561
1 ## Copyright (C) 2001 Paul Kienzle
2 ##
3 ## This program is free software; you can redistribute it and/or modify
4 ## it under the terms of the GNU General Public License as published by
5 ## the Free Software Foundation; either version 2 of the License, or
6 ## (at your option) any later version.
7 ##
8 ## This program is distributed in the hope that it will be useful,
9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 ## GNU General Public License for more details.
12 ##
13 ## You should have received a copy of the GNU General Public License
14 ## along with this program; if not, write to the Free Software
15 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16
17 ## a = mad(X)
18 ## mean absolute deviation of X
19 function a = mad(X)
20 if nargin != 1
21 usage("a = mad (X)");
22 elseif all (size (X) > 1)
23 a = mean (abs (X - ones(size(X,1),1) * mean(X)));
24 else
25 a = mean (abs (X - mean(X)));
26 endif
27 endfunction