PCACut.h

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Written (W) 1999-2008 Gunnar Raetsch
 * Written (W) 1999-2008 Soeren Sonnenburg
 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 */

#ifndef _CPCACUT__H__
#define _CPCACUT__H__

#include "lib/config.h"

#ifdef HAVE_LAPACK

#include <stdio.h>

#include "preproc/SimplePreProc.h"
#include "features/Features.h"
#include "lib/common.h"

namespace shogun
{
#define IGNORE_IN_CLASSLIST
IGNORE_IN_CLASSLIST class CPCACut : public CSimplePreProc<float64_t>
{
    public:
        CPCACut(int32_t do_whitening=0, float64_t thresh=1e-6);
        virtual ~CPCACut();

        virtual bool init(CFeatures* f);
        virtual void cleanup();

        virtual float64_t* apply_to_feature_matrix(CFeatures* f);

        virtual float64_t* apply_to_feature_vector(float64_t* f, int32_t &len);

        inline virtual const char* get_name() { return "PCACut"; }

    protected:
        double* T ;
        int32_t num_dim;
        int32_t num_old_dim;
        float64_t *mean ;

        bool initialized;

        int32_t do_whitening;
        float64_t thresh;
};
}
#endif
#endif