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DummyFeatures.h
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DummyFeatures.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) 2009 Soeren Sonnenburg
* Copyright (C) 2009 Fraunhofer Institute FIRST and Max-Planck-Society
*/
#ifndef _DUMMYFEATURES__H__
#define _DUMMYFEATURES__H__
#include <shogun/lib/common.h>
#include <shogun/features/Features.h>
#include <shogun/base/Parameter.h>
namespace shogun
{
/** @brief The class DummyFeatures implements features that only know the
* number of feature objects (but don't actually contain any).
*
* This is used in the CCustomKernel.*/
class CDummyFeatures : public CFeatures
{
void init(void) {
m_parameters->add(&num_vectors, "num_vectors",
"Number of feature vectors.");
}
public:
/** default constructor */
CDummyFeatures(void) {
init();
num_vectors = 0;
}
/** constructor
*
* @param num number of feature vectors
*/
CDummyFeatures(int32_t num) : CFeatures(0), num_vectors(num)
{
init();
}
/** copy constructor */
CDummyFeatures(const CDummyFeatures &orig) : CFeatures(0),
num_vectors(orig.num_vectors)
{
init();
}
/** destructor */
virtual ~CDummyFeatures()
{
}
/** get number of feature vectors */
virtual int32_t get_num_vectors() const
{
return num_vectors;
}
/** get size of features (always 1) */
virtual int32_t get_size()
{
return 1;
}
/** duplicate features */
virtual CFeatures* duplicate() const
{
return new CDummyFeatures(*this);
}
/** get feature type (ANY) */
inline EFeatureType get_feature_type()
{
return F_ANY;
}
/** get feature class (ANY) */
inline virtual EFeatureClass get_feature_class()
{
return C_ANY;
}
/** @return object name */
inline virtual const char* get_name() const { return "DummyFeatures"; }
protected:
/** number of feature vectors */
int32_t num_vectors;
};
}
#endif