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