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 _CPRUNE_VAR_SUB_MEAN__H__ 00013 #define _CPRUNE_VAR_SUB_MEAN__H__ 00014 00015 #include <shogun/preprocessor/SimplePreprocessor.h> 00016 #include <shogun/features/Features.h> 00017 #include <shogun/features/SimpleFeatures.h> 00018 #include <shogun/lib/common.h> 00019 00020 #include <stdio.h> 00021 00022 namespace shogun 00023 { 00030 class CPruneVarSubMean : public CSimplePreprocessor<float64_t> 00031 { 00032 public: 00037 CPruneVarSubMean(bool divide=true); 00038 00040 virtual ~CPruneVarSubMean(); 00041 00043 virtual bool init(CFeatures* features); 00044 00046 virtual void cleanup(); 00047 00051 virtual SGMatrix<float64_t> apply_to_feature_matrix(CFeatures* features); 00052 00055 virtual SGVector<float64_t> apply_to_feature_vector(SGVector<float64_t> vector); 00056 00058 virtual inline const char* get_name() const { return "PruneVarSubMean"; } 00059 00061 virtual inline EPreprocessorType get_type() const { return P_PRUNEVARSUBMEAN; } 00062 00063 protected: 00065 int32_t* idx; 00067 float64_t* mean; 00069 float64_t* std; 00071 int32_t num_idx; 00073 bool divide_by_std; 00074 00076 bool initialized; 00077 }; 00078 } 00079 #endif
