1 | #ifndef _theplu_yat_statistics_loglikelihood_ratio_test_binomial |
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2 | #define _theplu_yat_statistics_loglikelihood_ratio_test_binomial |
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3 | |
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4 | // $Id: LoglikelihoodRatioTestBinomial.h 3134 2013-11-27 06:12:16Z peter $ |
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5 | |
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6 | /* |
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7 | Copyright (C) 2013 Peter Johansson |
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8 | |
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9 | This file is part of the yat library, http://dev.thep.lu.se/yat |
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10 | |
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11 | The yat library is free software; you can redistribute it and/or |
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12 | modify it under the terms of the GNU General Public License as |
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13 | published by the Free Software Foundation; either version 3 of the |
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14 | License, or (at your option) any later version. |
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15 | |
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16 | The yat library is distributed in the hope that it will be useful, |
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17 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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19 | General Public License for more details. |
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20 | |
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21 | You should have received a copy of the GNU General Public License |
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22 | along with yat. If not, see <http://www.gnu.org/licenses/>. |
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23 | */ |
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24 | |
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25 | #include <vector> |
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26 | |
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27 | namespace theplu { |
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28 | namespace yat { |
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29 | namespace statistics { |
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30 | |
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31 | /** |
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32 | \brief Loglikelihood-ratio test for binomial data |
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33 | |
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34 | This class is useful when having binomial data for several |
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35 | populations and especially comparing the frequency in the |
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36 | differen samples. |
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37 | */ |
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38 | class LoglikelihoodRatioTestBinomial |
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39 | { |
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40 | public: |
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41 | /** |
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42 | \brief constructor |
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43 | \param n number of populations in data |
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44 | */ |
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45 | LoglikelihoodRatioTestBinomial(size_t n=2); |
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46 | |
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47 | /** |
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48 | \brief add one data point |
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49 | \param population from which population the data point comes from. |
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50 | \param positive if \c true data point is positive. |
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51 | \param n how many data points added |
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52 | */ |
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53 | void add(size_t population, bool positive, long int n=1); |
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54 | |
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55 | /** |
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56 | \return Number of data points |
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57 | */ |
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58 | unsigned long int n(void) const; |
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59 | |
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60 | /** |
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61 | \return Number of data points from population \a i |
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62 | */ |
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63 | unsigned long int n(size_t i) const; |
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64 | |
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65 | /** |
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66 | \return Number of negative data points |
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67 | */ |
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68 | unsigned long int negative(void) const; |
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69 | |
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70 | /** |
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71 | \return Number of negative data points from population \a i |
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72 | */ |
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73 | unsigned long int negative(size_t i) const; |
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74 | |
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75 | /** |
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76 | \return Number of data points |
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77 | */ |
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78 | unsigned long int positive(void) const; |
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79 | |
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80 | /** |
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81 | \return Number of positive data points from population \a i |
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82 | */ |
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83 | unsigned long int positive(size_t i) const; |
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84 | |
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85 | /** |
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86 | \return Number of populations |
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87 | */ |
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88 | size_t size(void) const; |
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89 | |
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90 | /** |
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91 | \brief Calculate natural logarithm of likelihood ratios |
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92 | */ |
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93 | double operator()(void) const; |
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94 | |
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95 | private: |
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96 | std::vector<unsigned long int> neg_; |
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97 | std::vector<unsigned long int> pos_; |
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98 | }; |
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99 | |
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100 | }}} // of namespace theplu yat statistics |
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101 | |
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102 | #endif |
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