ROOT » TMVA » TMVA::SeparationBase

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.

static TClass*Class()
const TString&GetName()
virtual Double_tGetSeparationGain(const Double_t& nSelS, const Double_t& nSelB, const Double_t& nTotS, const Double_t& nTotB)
virtual Double_tGetSeparationIndex(const Double_t& s, const Double_t& b)
virtual TClass*IsA() const
TMVA::SeparationBase&operator=(const TMVA::SeparationBase&)
TMVA::SeparationBaseSeparationBase(const TMVA::SeparationBase& s)
virtual voidShowMembers(TMemberInspector& insp) const
virtual voidStreamer(TBuffer&)
voidStreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)

Data Members

TStringfNamename of the concrete Separation Index impementation

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

 default constructor
SeparationBase(const TMVA::SeparationBase& s)
 copy constructor
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()
Double_t GetSeparationIndex(const Double_t& s, const Double_t& b)
 Return the separation index (a measure for "purity" of the sample")
const TString& GetName()
 Return the name of the concrete Index implementation
{ return fName; }