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class TMVA::CrossEntropy
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library: libTMVA
#include "TMVA/CrossEntropy.h"
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ROOT » TMVA » TMVA::CrossEntropy

class TMVA::CrossEntropy: public TMVA::SeparationBase

 Implementation of the CrossEntropy as separation criterion
             -p log (p) - (1-p)log(1-p);     p=purity

Function Members (Methods)

Data Members

protected:
TStringTMVA::SeparationBase::fNamename of the concrete Separation Index impementation

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

Double_t GetSeparationIndex(const Double_t& s, const Double_t& b)
  Cross Entropy defined as
  -p log (p) - (1-p)log(1-p);     p=purity = s/(s+b)
CrossEntropy()
 default constructor
{ fName = "CE"; }
CrossEntropy(const TMVA::CrossEntropy& g)
 copy constructor
{}
virtual ~CrossEntropy()
 destructor
{}