DataGenerator.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) 2012 Heiko Strathmann
 */

#ifndef __DATAGENERATOR_H_
#define __DATAGENERATOR_H_

#include <shogun/lib/config.h>
#include <shogun/base/SGObject.h>
#include <shogun/lib/SGMatrix.h>
#include <shogun/labels/Labels.h>
#include <shogun/labels/MulticlassLabels.h>

namespace shogun
{

class CDataGenerator: public CSGObject
{
public:
    CDataGenerator();

    virtual ~CDataGenerator();

    static SGMatrix<float64_t> generate_checkboard_data(int32_t num_classes,
        int32_t dim, int32_t num_points, float64_t overlap);

    static SGMatrix<float64_t> generate_mean_data(index_t m, index_t dim,
            float64_t mean_shift,
            SGMatrix<float64_t> target=SGMatrix<float64_t>());

    static SGMatrix<float64_t> generate_sym_mix_gauss(index_t m,
            float64_t d, float64_t angle,
            SGMatrix<float64_t> target=SGMatrix<float64_t>());

#ifdef HAVE_LAPACK

    static SGMatrix<float64_t> generate_gaussians(index_t m, index_t n, index_t dim);
#endif /* HAVE_LAPACK */

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

private:
    void init();

};

}

#endif /* __DATAGENERATOR_H_ */