SHOGUN
v2.0.0
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00001 /* 00002 * This program is free software; you can redistribute it and/or modify 00003 * it under the terms of the GNU General Public License as published by 00004 * the Free Software Foundation; either version 3 of the License, or 00005 * (at your option) any later version. 00006 * 00007 * Written (W) 2012 Fernando José Iglesias García 00008 * Copyright (C) 2012 Fernando José Iglesias García 00009 */ 00010 00011 #include <shogun/features/MatrixFeatures.h> 00012 00013 namespace shogun { 00014 00015 template< class ST > CMatrixFeatures< ST >::CMatrixFeatures() 00016 : CFeatures(0) 00017 { 00018 init(); 00019 } 00020 00021 template< class ST > CMatrixFeatures< ST >::CMatrixFeatures( 00022 int32_t num_vecs, 00023 int32_t num_feats) 00024 : CFeatures(0) 00025 { 00026 init(); 00027 m_features = SGMatrixList< ST >(num_vecs); 00028 m_num_vectors = num_vecs; 00029 m_num_features = num_feats; 00030 } 00031 00032 template< class ST > CMatrixFeatures< ST >::CMatrixFeatures( 00033 SGMatrixList< ST > feats, int32_t num_feats) 00034 : CFeatures(0) 00035 { 00036 init(); 00037 set_features(feats, num_feats); 00038 } 00039 00040 template< class ST > CMatrixFeatures< ST >::CMatrixFeatures( 00041 SGMatrix< ST > feats, int32_t feat_length, int32_t num_vecs) 00042 : CFeatures(0) 00043 { 00044 REQUIRE(feats.num_cols == feat_length*num_vecs, "The number of columns of feats " 00045 "must be equal to feat_length times num_vecs\n"); 00046 init(); 00047 SGMatrixList< ST > feats_list = SGMatrixList< ST >::split(feats, num_vecs); 00048 set_features(feats_list, feats.num_rows); 00049 } 00050 00051 /* TODO */ 00052 template< class ST > CFeatures* CMatrixFeatures< ST >::duplicate() const 00053 { 00054 return NULL; 00055 } 00056 00057 template< class ST > CMatrixFeatures< ST >::~CMatrixFeatures() 00058 { 00059 cleanup(); 00060 } 00061 00062 /* TODO */ 00063 template< class ST > EFeatureType CMatrixFeatures< ST >::get_feature_type() const 00064 { 00065 return F_UNKNOWN; 00066 } 00067 00068 /* TODO */ 00069 template< class ST > EFeatureClass CMatrixFeatures< ST >::get_feature_class() const 00070 { 00071 return C_UNKNOWN; 00072 } 00073 00074 /* TODO */ 00075 template< class ST > int32_t CMatrixFeatures< ST >::get_size() const 00076 { 00077 return 0; 00078 } 00079 00080 template< class ST > SGMatrix< ST > CMatrixFeatures< ST >::get_feature_vector( 00081 int32_t num) const 00082 { 00083 if ( num < 0 || num >= get_num_vectors() ) 00084 { 00085 SG_ERROR("The index of the feature vector to get must be between " 00086 "0 and %d (get_num_vectors()-1)\n", get_num_vectors()-1); 00087 } 00088 00089 return m_features[num]; 00090 } 00091 00092 template< class ST > void CMatrixFeatures< ST >::get_feature_vector_col( 00093 SGVector< ST > out, 00094 int32_t num, 00095 int32_t col) const 00096 { 00097 if ( num < 0 || num >= get_num_vectors() ) 00098 { 00099 SG_ERROR("The index of the feature vector to get must be between " 00100 "0 and %d (get_num_vectors()-1)\n", get_num_vectors()-1); 00101 } 00102 00103 // Shorthands for the dimensions of the feature vector to get 00104 int32_t num_cols = m_features[num].num_cols; 00105 int32_t num_rows = m_features[num].num_rows; 00106 00107 if ( col < 0 || col >= num_cols ) 00108 { 00109 SG_ERROR("The index of the column to get must be between " 00110 "0 and %d (#columns of the feature vector)\n", num_cols); 00111 } 00112 00113 if ( out.vlen < get_num_features() ) 00114 { 00115 SG_ERROR("The vector out must have space to hold at least " 00116 "%d (get_num_features()) elements\n", get_num_features()); 00117 } 00118 00119 int32_t start = col*num_rows; 00120 for ( int32_t i = 0 ; i < get_num_features(); ++i ) 00121 { 00122 out[i] = m_features[num][start + i]; 00123 } 00124 } 00125 00126 template< class ST > void CMatrixFeatures< ST >::set_feature_vector( 00127 SGMatrix< ST > const & vec, 00128 int32_t num) 00129 { 00130 if ( num < 0 || num >= get_num_vectors() ) 00131 { 00132 SG_ERROR("The index of the feature vector to set must be between " 00133 "0 and %d (get_num_vectors()-1)\n", get_num_vectors()-1); 00134 } 00135 00136 if ( get_num_features() != 0 && vec.num_rows != get_num_features() ) 00137 { 00138 SG_ERROR("The feature vector to set must have the same features " 00139 "as the rest of the MatrixFeatures, %d " 00140 "(get_num_features())\n", get_num_features()); 00141 } 00142 00143 m_features[num] = vec; 00144 } 00145 00146 template< class ST > void CMatrixFeatures< ST >::set_features( 00147 SGMatrixList< ST > features, int32_t num_feats) 00148 { 00149 m_features = features; 00150 m_num_vectors = features.num_matrices; 00151 m_num_features = num_feats; 00152 } 00153 00154 template< class ST > void CMatrixFeatures< ST >::init() 00155 { 00156 SG_ADD(&m_num_vectors, "m_num_vectors", "Number of feature vectors", 00157 MS_NOT_AVAILABLE); 00158 SG_ADD(&m_num_features, "m_num_features", 00159 "Number of features per vector (optional)", MS_NOT_AVAILABLE); 00160 //TODO add SG_ADD for SGMatrixList 00161 //SG_ADD(&m_features, "m_features", "Matrix features", MS_NOT_AVAILABLE); 00162 00163 m_num_vectors = 0; 00164 m_num_features = 0; 00165 } 00166 00167 template< class ST > void CMatrixFeatures< ST >::cleanup() 00168 { 00169 m_features = SGMatrixList< ST >(); 00170 m_num_vectors = 0; 00171 m_num_features = 0; 00172 } 00173 00174 template class CMatrixFeatures<bool>; 00175 template class CMatrixFeatures<char>; 00176 template class CMatrixFeatures<int8_t>; 00177 template class CMatrixFeatures<uint8_t>; 00178 template class CMatrixFeatures<int16_t>; 00179 template class CMatrixFeatures<uint16_t>; 00180 template class CMatrixFeatures<int32_t>; 00181 template class CMatrixFeatures<uint32_t>; 00182 template class CMatrixFeatures<int64_t>; 00183 template class CMatrixFeatures<uint64_t>; 00184 template class CMatrixFeatures<float32_t>; 00185 template class CMatrixFeatures<float64_t>; 00186 template class CMatrixFeatures<floatmax_t>; 00187 00188 } /* namespace shogun */