1 | // $Id: statistics_test.cc 932 2007-10-05 21:03:46Z peter $ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2004 Jari Häkkinen, Peter Johansson |
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5 | Copyright (C) 2005 Peter Johansson |
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6 | Copyright (C) 2006 Jari Häkkinen, Markus Ringnér, Peter Johansson |
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7 | |
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8 | This file is part of the yat library, http://trac.thep.lu.se/trac/yat |
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9 | |
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10 | The yat library is free software; you can redistribute it and/or |
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11 | modify it under the terms of the GNU General Public License as |
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12 | published by the Free Software Foundation; either version 2 of the |
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13 | License, or (at your option) any later version. |
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14 | |
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15 | The yat library is distributed in the hope that it will be useful, |
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16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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18 | General Public License for more details. |
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19 | |
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20 | You should have received a copy of the GNU General Public License |
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21 | along with this program; if not, write to the Free Software |
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22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
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23 | 02111-1307, USA. |
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24 | */ |
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25 | |
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26 | #include "yat/statistics/utility.h" |
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27 | #include "yat/utility/vector.h" |
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28 | |
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29 | #include <vector> |
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30 | #include <cstdlib> |
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31 | #include <iostream> |
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32 | #include <cmath> |
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33 | |
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34 | int main() |
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35 | { |
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36 | using namespace theplu::yat; |
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37 | utility::vector gsl_vec(10); |
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38 | std::vector<double> data; |
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39 | for (unsigned int i=0; i<10; i++){ |
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40 | data.push_back(static_cast<double>(i)); |
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41 | gsl_vec(i)=i; |
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42 | } |
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43 | |
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44 | double m=statistics::median(data.begin(), data.end()); |
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45 | double m_gsl=statistics::median(gsl_vec.begin(), gsl_vec.end()); |
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46 | if (m!=4.5 || m!=m_gsl) |
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47 | return -1; |
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48 | |
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49 | double tolerance=1e-10; |
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50 | double skewness_gsl=statistics::skewness(gsl_vec); |
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51 | if (fabs(skewness_gsl)>tolerance) |
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52 | return -1; |
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53 | double kurtosis_gsl=statistics::kurtosis(gsl_vec); |
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54 | if (fabs(kurtosis_gsl+1.5616363636363637113)>tolerance) |
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55 | return -1; |
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56 | return 0; |
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57 | } |
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