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ProbabilityDistribution.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 3 of the License, or
5  * (at your option) any later version.
6  *
7  * Written (W) 2013 Heiko Strathmann
8  */
9 
10 #ifndef PROBABILITYDISTRIBUTION_H
11 #define PROBABILITYDISTRIBUTION_H
12 
13 #include <shogun/base/SGObject.h>
14 #include <shogun/lib/SGMatrix.h>
15 
16 namespace shogun
17 {
18 
19 template <class T> class SGVector;
20 
26 {
27 public:
30 
32  CProbabilityDistribution(int32_t dimension);
33 
35  virtual ~CProbabilityDistribution();
36 
45  virtual SGMatrix<float64_t> sample(int32_t num_samples,
46  SGMatrix<float64_t> pre_samples=SGMatrix<float64_t>()) const;
47 
53  virtual SGVector<float64_t> sample() const;
54 
61 
68  virtual float64_t log_pdf(SGVector<float64_t> sample_vec) const;
69 
71  virtual const char* get_name() const=0;
72 
73 private:
74 
76  void init();
77 
78 protected:
80  int32_t m_dimension;
81 };
82 
83 }
84 
85 #endif // PROBABILITYDISTRIBUTION_H
virtual const char * get_name() const =0
virtual float64_t log_pdf(SGVector< float64_t > sample_vec) const
A base class for representing n-dimensional probability distribution over the real numbers (64bit) fo...
Class SGObject is the base class of all shogun objects.
Definition: SGObject.h:102
double float64_t
Definition: common.h:48
all of classes and functions are contained in the shogun namespace
Definition: class_list.h:16
virtual SGVector< float64_t > log_pdf_multiple(SGMatrix< float64_t > samples) const
virtual SGVector< float64_t > sample() const

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