PlifArray.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
 * Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
 */

#ifndef __PLIFARRAY_H__
#define __PLIFARRAY_H__

#include <shogun/lib/common.h>
#include <shogun/mathematics/Math.h>
#include <shogun/base/DynArray.h>
#include <shogun/structure/PlifBase.h>

namespace shogun
{

class CPlifArray: public CPlifBase
{
    public:
        CPlifArray();
        virtual ~CPlifArray();

        void add_plif(CPlifBase* new_plif);

        void clear();

        int32_t get_num_plifs()
        {
            return m_array.get_num_elements();
        }

        virtual float64_t lookup_penalty(
            float64_t p_value, float64_t* svm_values) const;

        virtual float64_t lookup_penalty(
            int32_t p_value, float64_t* svm_values) const;

        virtual void penalty_clear_derivative();

        virtual void penalty_add_derivative(
            float64_t p_value, float64_t* svm_values, float64_t factor);

        virtual float64_t get_max_value() const
        {
            return max_value;
        }

        virtual float64_t get_min_value() const
        {
            return min_value;
        }

        virtual bool uses_svm_values() const;

        virtual int32_t get_max_id() const;

        void get_used_svms(int32_t* num_svms, int32_t* svm_ids);

        virtual void list_plif() const 
        {
            SG_PRINT("CPlifArray(num_elements=%i, min_value=%1.2f, max_value=%1.2f)\n", m_array.get_num_elements(), min_value, max_value) ;
            for (int32_t i=0; i<m_array.get_num_elements(); i++)
            {
                SG_PRINT("%i. ", i) ;
                m_array[i]->list_plif() ;
            }
        }

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

    protected:
        DynArray<CPlifBase*> m_array;
        float64_t max_value;
        float64_t min_value;
};
}
#endif