class TMVA::CCPruner

Function Members (Methods)

public:

	~CCPruner()
TMVA::CCPruner	CCPruner(const TMVA::CCPruner&)
TMVA::CCPruner	CCPruner(TMVA::DecisionTree* t_max, const TMVA::CCPruner::EventList* validationSample = NULL, TMVA::SeparationBase* qualityIndex = NULL)
vector<TMVA::DecisionTreeNode*>	GetOptimalPruneSequence() const
Float_t	GetOptimalPruneStrength() const
Float_t	GetOptimalQualityIndex() const
void	Optimize()
void	SetPruneStrength(Float_t alpha = -1.0)

Data Members

private:

Float_t	fAlpha	! regularization parameter in CC pruning
Bool_t	fDebug	! debug flag
Int_t	fOptimalK	! index of the optimal tree in the pruned tree sequence
Bool_t	fOwnQIndex	! flag indicates if fQualityIndex is owned by this
vector<TMVA::DecisionTreeNode*>	fPruneSequence	! map of weakest links (i.e., branches to prune) -> pruning index
vector<Float_t>	fPruneStrengthList	! map of alpha -> pruning index
TMVA::SeparationBase*	fQualityIndex	! the quality index used to calculate R(t), R(T) = sum[t in ~T]{ R(t) }
vector<Float_t>	fQualityIndexList	! map of R(T) -> pruning index
TMVA::DecisionTree*	fTree	! (pruned) decision tree
const TMVA::CCPruner::EventList*	fValidationSample	! the event sample to select the optimally-pruned tree

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

CCPruner(TMVA::DecisionTree* t_max, const TMVA::CCPruner::EventList* validationSample = NULL, TMVA::SeparationBase* qualityIndex = NULL)

 constructor

~CCPruner( )

void Optimize( )

 determine the pruning sequence

std::vector<DecisionTreeNode*> GetOptimalPruneSequence( )

 return the prune strength (=alpha) corresponding to the prune sequence

void SetPruneStrength(Float_t alpha = -1.0)

CCPruner(TMVA::DecisionTree* t_max, const TMVA::CCPruner::EventList* validationSample = NULL, TMVA::SeparationBase* qualityIndex = NULL)

Float_t GetOptimalQualityIndex( )

 return the quality index from the validation sample for the optimal subtree T'

Float_t GetOptimalPruneStrength( )

 return the prune strength (=alpha) corresponding to the prune sequence

Last change: Sat Nov 1 10:21:30 2008
Last generated: 2008-11-01 10:21
Copyright (c) 2007: *

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