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) 1999-2008 Gunnar Raetsch 00008 * Written (W) 1999-2008 Soeren Sonnenburg 00009 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society 00010 */ 00011 00012 #ifndef _CPCACUT__H__ 00013 #define _CPCACUT__H__ 00014 00015 #include "lib/config.h" 00016 00017 #ifdef HAVE_LAPACK 00018 00019 #include <stdio.h> 00020 00021 #include "preproc/SimplePreProc.h" 00022 #include "features/Features.h" 00023 #include "lib/common.h" 00024 00025 namespace shogun 00026 { 00039 class CPCACut : public CSimplePreProc<float64_t> 00040 { 00041 public: 00047 CPCACut(int32_t do_whitening=0, float64_t thresh=1e-6); 00048 virtual ~CPCACut(); 00049 00051 virtual bool init(CFeatures* f); 00053 virtual void cleanup(); 00054 00058 virtual float64_t* apply_to_feature_matrix(CFeatures* f); 00059 00062 virtual float64_t* apply_to_feature_vector(float64_t* f, int32_t &len); 00063 00065 inline virtual const char* get_name() { return "PCACut"; } 00066 00067 protected: 00069 double* T ; 00071 int32_t num_dim; 00073 int32_t num_old_dim; 00075 float64_t *mean ; 00076 00078 bool initialized; 00079 00081 int32_t do_whitening; 00083 float64_t thresh; 00084 }; 00085 } 00086 #endif 00087 #endif