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MeanFunction.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 Roman Votyakov
8  * Copyright (C) 2012 Jacob Walker
9  */
10 
11 #ifndef CMEANFUNCTION_H_
12 #define CMEANFUNCTION_H_
13 
14 #include <shogun/lib/config.h>
15 
16 #include <shogun/base/SGObject.h>
17 #include <shogun/base/Parameter.h>
19 
20 namespace shogun
21 {
22 
28 class CMeanFunction : public CSGObject
29 {
30 public:
33 
34  virtual ~CMeanFunction() { }
35 
42  virtual SGVector<float64_t> get_mean_vector(const CFeatures* features) const=0;
43 
53  const TParameter* param, index_t index=-1)
54  {
55  SG_ERROR("Can't compute derivative wrt %s parameter\n", param->m_name)
56  return SGVector<float64_t>();
57  }
58 };
59 }
60 #endif /* CMEANFUNCTION_H_ */

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