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MeanFunction.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) 2013 Roman Votyakov
00008  * Copyright (C) 2012 Jacob Walker
00009  */
00010 
00011 #ifndef CMEANFUNCTION_H_
00012 #define CMEANFUNCTION_H_
00013 
00014 #include <shogun/base/SGObject.h>
00015 #include <shogun/base/Parameter.h>
00016 #include <shogun/features/Features.h>
00017 
00018 namespace shogun
00019 {
00020 
00026 class CMeanFunction : public CSGObject
00027 {
00028 public:
00030     CMeanFunction() { }
00031 
00032     virtual ~CMeanFunction() { }
00033 
00040     virtual SGVector<float64_t> get_mean_vector(const CFeatures* features) const=0;
00041 
00050     virtual SGVector<float64_t> get_parameter_derivative(const CFeatures* features,
00051             const TParameter* param, index_t index=-1)
00052     {
00053         SG_ERROR("Can't compute derivative wrt %s parameter\n", param->m_name)
00054         return SGVector<float64_t>();
00055     }
00056 };
00057 }
00058 #endif /* CMEANFUNCTION_H_ */
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