1 | #ifndef _theplu_yat_classifier_dataLookup_weighted_1D_ |
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2 | #define _theplu_yat_classifier_dataLookup_weighted_1D_ |
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3 | |
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4 | // $Id: DataLookupWeighted1D.h 890 2007-09-25 09:35:25Z markus $ |
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5 | |
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6 | /* |
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7 | Copyright (C) 2006 Jari Häkkinen, Peter Johansson |
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8 | Copyright (C) 2007 Peter Johansson |
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9 | |
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10 | This file is part of the yat library, http://trac.thep.lu.se/trac/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 2 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 this program; if not, write to the Free Software |
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24 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
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25 | 02111-1307, USA. |
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26 | */ |
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27 | |
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28 | #include "yat/utility/IteratorWeighted.h" |
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29 | |
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30 | #include <iostream> |
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31 | #include <vector> |
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32 | |
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33 | namespace theplu { |
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34 | namespace yat { |
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35 | namespace classifier { |
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36 | |
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37 | class MatrixLookupWeighted; |
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38 | |
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39 | /// |
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40 | /// @brief Class for general weighted vector view. |
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41 | /// |
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42 | /// @see MatrixLookupWeighted |
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43 | /// |
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44 | class DataLookupWeighted1D |
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45 | { |
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46 | |
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47 | public: |
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48 | |
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49 | typedef utility::IteratorWeighted<const double, const classifier::DataLookupWeighted1D> |
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50 | const_iterator; |
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51 | |
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52 | /// |
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53 | /// Constructor. |
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54 | /// |
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55 | /// @param row_vector if true (default) DataLookup1D is |
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56 | /// looking into a row of DataLookup2D, otherwise looking into |
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57 | /// a column. @param index which row/column to look into. |
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58 | /// |
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59 | DataLookupWeighted1D(const MatrixLookupWeighted&, const size_t index, |
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60 | const bool row_vector); |
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61 | |
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62 | /// |
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63 | /// Copy constructor |
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64 | /// |
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65 | DataLookupWeighted1D(const DataLookupWeighted1D&); |
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66 | |
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67 | /// |
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68 | /// Construct DataLookup1D that owns its underlying matrix. Object |
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69 | /// has size @ size and all its element is equal to @a value. |
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70 | /// |
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71 | DataLookupWeighted1D(const size_t size, double value=0, double weight=1); |
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72 | |
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73 | /// |
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74 | /// @brief Destructor |
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75 | /// |
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76 | virtual ~DataLookupWeighted1D(); |
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77 | |
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78 | /** |
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79 | */ |
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80 | const_iterator begin() const; |
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81 | |
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82 | /** |
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83 | \return data(i) |
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84 | */ |
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85 | double data(const size_t i) const; |
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86 | |
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87 | /** |
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88 | */ |
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89 | const_iterator end() const; |
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90 | |
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91 | /// |
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92 | /// @return number of elements |
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93 | /// |
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94 | size_t size(void) const; |
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95 | |
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96 | /// |
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97 | /// @return weight(i) |
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98 | /// |
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99 | double weight(const size_t i) const; |
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100 | |
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101 | /// |
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102 | /// @return data(i) * weight(i) |
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103 | /// |
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104 | double operator()(const size_t i) const; |
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105 | |
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106 | /// |
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107 | /// @return data(i) * weight(i) |
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108 | /// |
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109 | double operator[](const size_t i) const; |
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110 | |
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111 | private: |
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112 | const DataLookupWeighted1D& operator=(const DataLookupWeighted1D&); |
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113 | |
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114 | const bool column_vector_; |
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115 | const size_t index_; |
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116 | const MatrixLookupWeighted* matrix_; |
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117 | const bool owner_; |
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118 | |
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119 | }; |
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120 | |
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121 | /// |
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122 | /// @return sum of weights |
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123 | /// |
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124 | double sum_weight(const DataLookupWeighted1D&); |
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125 | |
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126 | }}} // of namespace classifier, yat, and theplu |
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127 | |
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128 | #endif |
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