class TMVA::SeparationBase

Function Members (Methods)

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 Charts

Inheritance Inherited Members Includes Libraries

Function documentation

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

{ return fName; }

Author: Andreas Hoecker, Joerg Stelzer, Helge Voss
Last update: root/tmva $Id: SeparationBase.cxx,v 1.11 2007/06/19 13:26:21 brun Exp $
Copyright (c) 2005: *

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