library: libTMVA
#include "SeparationBase.h"

TMVA::SeparationBase

class description - header file - source file - inheritance tree (.pdf)

class TMVA::SeparationBase

Inheritance Chart:
TMVA::SeparationBase
<-
TMVA::CrossEntropy
TMVA::GiniIndex
TMVA::MisClassificationError
TMVA::SdivSqrtSplusB
 
    This is an abstract class, constructors will not be documented.
    Look at the header to check for available constructors.

    public:

                    virtual ~SeparationBase()
             static TClass* Class()
                    TString GetName()
                   Double_t GetSeparationGain(const Double_t& nSelS, const Double_t& nSelB, const Double_t& nTotS, const Double_t& nTotB)
           virtual Double_t GetSeparationIndex(const Double_t& s, const Double_t& b)
            virtual TClass* IsA() const
      TMVA::SeparationBase& operator=(const TMVA::SeparationBase&)
               virtual void ShowMembers(TMemberInspector& insp, char* parent)
               virtual void Streamer(TBuffer& b)
                       void StreamerNVirtual(TBuffer& b)

Data Members


    protected:

      TString fName  name of the concrete Separation Index impementation

Class Description

Double_t GetSeparationGain(const Double_t &nSelS, const Double_t& nSelB, const Double_t& nTotS, const Double_t& nTotB)
 Separation Gain:
 the measure of how the quality of separation of the sample increases
 by splitting the sample e.g. into a "left-node" and a "right-node"
 (N * Index_parent) - (N_left * Index_left) - (N_right * Index_right)
 this is then the quality crition which is optimized for when trying
 to increase the information in the system (making the best selection
virtual ~SeparationBase()
 destructor
Double_t GetSeparationIndex( const Double_t &s, const Double_t &b )
 Return the separation index (a measure for "purity" of the sample")
TString GetName()
 Return the name of the concrete Index implementation

Last update: Tue Jul 11 11:56:40 2006
Copyright (c) 2005: *

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