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DataGenerator.h
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00001 /*
00002  * This program is free software; you can redistribute it and/or modify
00003  * it under the terms of the GNU General Public License as published by
00004  * the Free Software Foundation; either version 3 of the License, or
00005  * (at your option) any later version.
00006  *
00007  * Written (W) 2012 Heiko Strathmann
00008  */
00009 
00010 #ifndef __DATAGENERATOR_H_
00011 #define __DATAGENERATOR_H_
00012 #include <shogun/lib/config.h>
00013 #include <shogun/base/SGObject.h>
00014 #include <shogun/lib/SGMatrix.h>
00015 #include <shogun/labels/Labels.h>
00016 #include <shogun/labels/MulticlassLabels.h>
00017 
00018 namespace shogun
00019 {
00020 
00024 class CDataGenerator: public CSGObject
00025 {
00026 public:
00027     CDataGenerator();
00028 
00029     virtual ~CDataGenerator();
00030 
00042     static SGMatrix<float64_t> generate_checkboard_data(int32_t num_classes,
00043         int32_t dim, int32_t num_points, float64_t overlap);
00044 
00058     static SGMatrix<float64_t> generate_mean_data(index_t m, index_t dim,
00059             float64_t mean_shift,
00060             SGMatrix<float64_t> target=SGMatrix<float64_t>());
00061 
00083     static SGMatrix<float64_t> generate_sym_mix_gauss(index_t m,
00084             float64_t d, float64_t angle,
00085             SGMatrix<float64_t> target=SGMatrix<float64_t>());
00086 
00087 #ifdef HAVE_LAPACK
00088 
00098     static SGMatrix<float64_t> generate_gaussians(index_t m, index_t n, index_t dim);
00099 #endif /* HAVE_LAPACK */
00100 
00101     virtual const char* get_name() const { return "DataGenerator"; }
00102 
00103 private:
00105     void init();
00106 
00107 };
00108 
00109 }
00110 
00111 #endif /* __DATAGENERATOR_H_ */
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SHOGUN Machine Learning Toolbox - Documentation