discreteconditionalpdf.h
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00001 // $Id: discreteconditionalpdf.h 29890 2009-02-02 10:22:01Z tdelaet $
00002 // Copyright (C) 2002 Klaas Gadeyne <first dot last at gmail dot com>
00003 //               2008 Tinne De Laet <first dot last at mech dot kuleuven dot be>
00004 //
00005 // This program is free software; you can redistribute it and/or modify
00006 // it under the terms of the GNU Lesser General Public License as published by
00007 // the Free Software Foundation; either version 2.1 of the License, or
00008 // (at your option) any later version.
00009 //
00010 // This program is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 // GNU Lesser General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public License
00016 // along with this program; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00018 //
00019 
00020 #ifndef __DISCRETE_CONDITIONAL_PDF__
00021 #define __DISCRETE_CONDITIONAL_PDF__
00022 
00023 #include "conditionalpdf.h"
00024 
00025 namespace BFL
00026 {
00027 
00029 
00053   class DiscreteConditionalPdf : public ConditionalPdf<int, int>
00054     {
00055     protected:
00057       unsigned int _num_states;
00058 
00060 
00063       double * _probability_p;
00065       int * _cond_arg_dims_p;
00066 
00068       int _total_dimension;
00069 
00071       int IndexGet(const int& input, const std::vector<int>& condargs) const;
00072 
00073       // variables to prevent memory allocation on the heap during call of
00074       //SampleFrom
00075       mutable std::vector<double> _probs;
00076       mutable std::vector<double> _valuelist;
00077 
00078     public:
00080 
00090       DiscreteConditionalPdf(int num_states=1,
00091                              int num_conditional_arguments=1,
00092                              int cond_arg_dimensions[] = NULL);
00094       DiscreteConditionalPdf(const DiscreteConditionalPdf & pdf);
00096       virtual ~DiscreteConditionalPdf();
00097 
00099       virtual DiscreteConditionalPdf* Clone() const;
00100 
00102       unsigned int NumStatesGet()const;
00103 
00104       // Redefine all pure virtuals!
00105       Probability ProbabilityGet(const int& input) const;
00106       virtual bool SampleFrom (Sample<int>& one_sample, int method, void * args) const;
00107       virtual bool SampleFrom (vector<Sample<int> >& list_samples, int num_samples, int method, void * args) const;
00108 
00110       void ProbabilitySet(const double& prob, const int& input, const std::vector<int>& condargs) const;
00111 
00112 
00113     };
00114 
00115 } // End namespace BFL
00116 
00117 #endif // __DISCRETE_CONDITIONAL_PDF__


bfl
Author(s): Klaas Gadeyne, Wim Meeussen, Tinne Delaet and many others. See web page for a full contributor list. ROS package maintained by Wim Meeussen.
autogenerated on Sun Oct 5 2014 22:29:52