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LDA.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 1999-2009 Soeren Sonnenburg
8  * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
9  */
10 
11 #ifndef _LDA_H___
12 #define _LDA_H___
13 
14 #include <shogun/lib/config.h>
15 
16 #ifdef HAVE_LAPACK
17 #include <shogun/lib/common.h>
21 
22 namespace shogun
23 {
24  template <class ST> class CDenseFeatures;
52 class CLDA : public CLinearMachine
53 {
54  public:
56 
61  CLDA(float64_t gamma=0);
62 
69  CLDA(float64_t gamma, CDenseFeatures<float64_t>* traindat, CLabels* trainlab);
70  virtual ~CLDA();
71 
76  inline void set_gamma(float64_t gamma)
77  {
78  m_gamma=gamma;
79  }
80 
86  {
87  return m_gamma;
88  }
89 
95  {
96  return CT_LDA;
97  }
98 
103  virtual void set_features(CDotFeatures* feat)
104  {
105  if (feat->get_feature_class() != C_DENSE ||
106  feat->get_feature_type() != F_DREAL)
107  SG_ERROR("LDA requires SIMPLE REAL valued features\n")
108 
110  }
111 
113  virtual const char* get_name() const { return "LDA"; }
114 
115  protected:
124  virtual bool train_machine(CFeatures* data=NULL);
125 
126  protected:
129 };
130 }
131 #endif
132 #endif

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