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) 1999-2009 Soeren Sonnenburg 00008 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00009 */ 00010 00011 #ifndef _LDA_H___ 00012 #define _LDA_H___ 00013 00014 #include "lib/config.h" 00015 00016 #ifdef HAVE_LAPACK 00017 #include "lib/common.h" 00018 #include "features/Features.h" 00019 #include "features/SimpleFeatures.h" 00020 #include "classifier/LinearClassifier.h" 00021 00022 namespace shogun 00023 { 00024 template <class ST> class CSimpleFeatures; 00052 #define IGNORE_IN_CLASSLIST 00053 IGNORE_IN_CLASSLIST class CLDA : public CLinearClassifier 00054 { 00055 public: 00060 CLDA(float64_t gamma=0); 00061 00068 CLDA(float64_t gamma, CSimpleFeatures<float64_t>* traindat, CLabels* trainlab); 00069 virtual ~CLDA(); 00070 00075 inline void set_gamma(float64_t gamma) 00076 { 00077 m_gamma=gamma; 00078 } 00079 00084 inline float64_t get_gamma() 00085 { 00086 return m_gamma; 00087 } 00088 00097 virtual bool train(CFeatures* data=NULL); 00098 00103 inline virtual EClassifierType get_classifier_type() 00104 { 00105 return CT_LDA; 00106 } 00107 00112 virtual inline void set_features(CDotFeatures* feat) 00113 { 00114 if (feat->get_feature_class() != C_SIMPLE || 00115 feat->get_feature_type() != F_DREAL) 00116 SG_ERROR("LDA requires SIMPLE REAL valued features\n"); 00117 00118 CLinearClassifier::set_features(feat); 00119 } 00120 00122 inline virtual const char* get_name() const { return "LDA"; } 00123 00124 protected: 00126 float64_t m_gamma; 00127 }; 00128 } 00129 #endif 00130 #endif