1 | // $Id: pca_test.cc 1487 2008-09-10 08:41:36Z jari $ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2003 Daniel Dalevi |
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5 | Copyright (C) 2004 Jari Häkkinen |
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6 | Copyright (C) 2005 Peter Johansson |
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7 | Copyright (C) 2006 Jari Häkkinen |
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8 | Copyright (C) 2007, 2008 Jari Häkkinen, Peter Johansson |
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9 | |
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10 | This file is part of the yat library, http://dev.thep.lu.se/yat |
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11 | |
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12 | The yat library is free software; you can redistribute it and/or |
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13 | modify it under the terms of the GNU General Public License as |
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14 | published by the Free Software Foundation; either version 3 of the |
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15 | License, or (at your option) any later version. |
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16 | |
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17 | The yat library is distributed in the hope that it will be useful, |
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18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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20 | General Public License for more details. |
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21 | |
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22 | You should have received a copy of the GNU General Public License |
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23 | along with yat. If not, see <http://www.gnu.org/licenses/>. |
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24 | */ |
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25 | |
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26 | #include "Suite.h" |
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27 | |
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28 | #include "yat/utility/Matrix.h" |
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29 | #include "yat/utility/PCA.h" |
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30 | |
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31 | #include <cmath> |
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32 | #include <fstream> |
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33 | #include <string> |
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34 | #include <vector> |
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35 | |
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36 | |
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37 | int main(int argc, char* argv[]) |
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38 | { |
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39 | using namespace theplu::yat; |
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40 | test::Suite suite(argc, argv); |
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41 | utility::Matrix A( 3, 4 ); |
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42 | for( size_t i = 0; i < 3; ++i ) |
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43 | for( size_t j = 0; j < 4; ++j ) |
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44 | A(i,j)= sin( static_cast<double>(i+j+2+(i+1)*(j+1)) ); |
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45 | A.transpose(); |
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46 | utility::PCA pca(A); |
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47 | for (size_t i=1; i<pca.eigenvalues().size(); ++i) |
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48 | if (!suite.add(pca.eigenvalues()(i-1)>=pca.eigenvalues()(i))) |
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49 | suite.err() << "eigenvalues not in non-increasing order\n"; |
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50 | |
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51 | return suite.return_value(); |
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52 | } |
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53 | |
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