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yap-6.3/packages/CLPBN/clpbn/bp/BayesNode.h
2011-07-22 21:33:30 +01:00

67 lines
2.0 KiB
C++
Executable File

#ifndef BP_BAYES_NODE_H
#define BP_BAYES_NODE_H
#include <vector>
#include "Variable.h"
#include "CptEntry.h"
#include "Distribution.h"
#include "Shared.h"
using namespace std;
class BayesNode : public Variable
{
public:
BayesNode (Vid vid) : Variable (vid) {}
BayesNode (Vid, unsigned, int, const BnNodeSet&, Distribution*);
BayesNode (Vid, string, const Domain&, const BnNodeSet&, Distribution*);
void setData (unsigned, int, const BnNodeSet&,
Distribution*);
void addChild (BayesNode*);
Distribution* getDistribution (void);
const ParamSet& getParameters (void);
ParamSet getRow (int) const;
void setProbability (int, const CptEntry&, double);
bool isRoot (void);
bool isLeaf (void);
bool hasNeighbors (void) const;
int getCptSize (void);
const vector<CptEntry>& getCptEntries (void);
int getIndexOfParent (const BayesNode*) const;
string cptEntryToString (const CptEntry&) const;
string cptEntryToString (int, const CptEntry&) const;
const BnNodeSet& getParents (void) const { return parents_; }
const BnNodeSet& getChilds (void) const { return childs_; }
unsigned getRowSize (void) const
{
return dist_->params.size() / getDomainSize();
}
double getProbability (int row, const CptEntry& entry)
{
int col = entry.getParameterIndex();
int idx = (row * getRowSize()) + col;
return dist_->params[idx];
}
private:
DISALLOW_COPY_AND_ASSIGN (BayesNode);
Domain getDomainHeaders (void) const;
friend ostream& operator << (ostream&, const BayesNode&);
BnNodeSet parents_;
BnNodeSet childs_;
Distribution* dist_;
};
ostream& operator << (ostream&, const BayesNode&);
#endif //BP_BAYES_NODE_H