MeanFunction.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) 2013 Roman Votyakov
 * Copyright (C) 2012 Jacob Walker
 */

#ifndef CMEANFUNCTION_H_
#define CMEANFUNCTION_H_

#include <shogun/base/SGObject.h>
#include <shogun/base/Parameter.h>
#include <shogun/features/Features.h>

namespace shogun
{

class CMeanFunction : public CSGObject
{
public:
    CMeanFunction() { }

    virtual ~CMeanFunction() { }

    virtual SGVector<float64_t> get_mean_vector(const CFeatures* features) const=0;

    virtual SGVector<float64_t> get_parameter_derivative(const CFeatures* features,
            const TParameter* param, index_t index=-1)
    {
        SG_ERROR("Can't compute derivative wrt %s parameter\n", param->m_name)
        return SGVector<float64_t>();
    }
};
}
#endif /* CMEANFUNCTION_H_ */