1 | // $Id: DataLookupWeighted1D.cc 1552 2008-10-06 14:36:56Z peter $ |
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2 | |
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3 | /* |
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4 | Copyright (C) 2006 Jari Häkkinen, Peter Johansson |
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5 | Copyright (C) 2007 Jari Häkkinen, Peter Johansson, Markus Ringnér |
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6 | Copyright (C) 2008 Peter Johansson |
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7 | |
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8 | This file is part of the yat library, http://dev.thep.lu.se/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 3 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 yat. If not, see <http://www.gnu.org/licenses/>. |
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22 | */ |
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23 | |
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24 | #include "DataLookupWeighted1D.h" |
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25 | #include "MatrixLookupWeighted.h" |
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26 | |
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27 | #include <cassert> |
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28 | #include <iostream> |
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29 | #include <iomanip> |
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30 | |
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31 | namespace theplu { |
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32 | namespace yat { |
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33 | namespace classifier { |
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34 | |
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35 | DataLookupWeighted1D::DataLookupWeighted1D(const MatrixLookupWeighted& m, |
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36 | const size_t i, |
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37 | const bool row_vector) |
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38 | : column_vector_(!row_vector), index_(i), matrix_(&m), owner_(false) |
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39 | { |
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40 | assert( !column_vector_ || i<m.columns()); |
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41 | assert( column_vector_ || i<m.rows()); |
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42 | } |
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43 | |
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44 | |
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45 | DataLookupWeighted1D::DataLookupWeighted1D(const size_t size, |
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46 | const double value, |
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47 | const double weight) |
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48 | : column_vector_(false), index_(0), owner_(true) |
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49 | { |
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50 | matrix_ = new MatrixLookupWeighted(1,size,value,weight); |
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51 | } |
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52 | |
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53 | |
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54 | DataLookupWeighted1D::DataLookupWeighted1D(const DataLookupWeighted1D& other) |
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55 | : column_vector_(other.column_vector_), index_(other.index_), |
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56 | matrix_(other.matrix_), owner_(false) |
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57 | { |
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58 | } |
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59 | |
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60 | |
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61 | DataLookupWeighted1D::~DataLookupWeighted1D() |
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62 | { |
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63 | if (owner_) |
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64 | delete matrix_; |
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65 | } |
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66 | |
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67 | |
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68 | DataLookupWeighted1D::const_iterator DataLookupWeighted1D::begin(void) const |
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69 | { |
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70 | if (column_vector_) |
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71 | return matrix_->begin_column(index_); |
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72 | return matrix_->begin_row(index_); |
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73 | } |
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74 | |
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75 | |
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76 | double DataLookupWeighted1D::data(const size_t i) const |
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77 | { |
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78 | return column_vector_? matrix_->data(i,index_) : matrix_->data(index_,i); |
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79 | } |
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80 | |
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81 | |
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82 | DataLookupWeighted1D::const_iterator DataLookupWeighted1D::end(void) const |
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83 | { |
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84 | if (column_vector_) |
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85 | return matrix_->end_column(index_); |
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86 | return matrix_->end_row(index_); |
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87 | } |
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88 | |
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89 | |
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90 | |
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91 | size_t DataLookupWeighted1D::size(void) const |
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92 | { |
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93 | return column_vector_ ? matrix_->rows() : matrix_->columns(); |
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94 | } |
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95 | |
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96 | |
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97 | double sum_weight(const DataLookupWeighted1D& x) |
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98 | { |
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99 | double r=0; |
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100 | for (size_t i=0; i<x.size(); ++i) |
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101 | r += x.weight(i); |
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102 | return r; |
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103 | } |
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104 | |
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105 | |
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106 | double DataLookupWeighted1D::weight(const size_t i) const |
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107 | { |
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108 | return column_vector_? matrix_->weight(i,index_) : matrix_->weight(index_,i); |
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109 | } |
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110 | |
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111 | |
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112 | DataLookupWeighted1D::const_reference |
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113 | DataLookupWeighted1D::operator()(const size_t i) const |
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114 | { |
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115 | return column_vector_ ? (*matrix_)(i,index_) : (*matrix_)(index_,i); |
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116 | } |
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117 | |
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118 | |
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119 | }}} // of namespace classifier, yat, and theplu |
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