TMVA::VarTransformHandler Class Reference

Definition at line 41 of file VarTransformHandler.h.

Public Member Functions
	VarTransformHandler (DataLoader *)
	constructor
	~VarTransformHandler ()
	destructor
MsgLogger &	Log () const
	message logger
TMVA::DataLoader *	VarianceThreshold (Double_t threshold)
	Computes variance of all the variables and returns a new DataLoader with the selected variables whose variance is above a specific threshold.

Public Attributes
MsgLogger *	fLogger

Private Member Functions
void	CalcNorm ()
	Computes maximum, minimum, mean, RMS and variance for all variables and targets.
void	CopyDataLoader (TMVA::DataLoader *des, TMVA::DataLoader *src)
void	UpdateNorm (Int_t ivar, Double_t x)
	Updates maximum and minimum value of a variable or target.

Private Attributes
DataLoader *	fDataLoader
DataSetInfo &	fDataSetInfo
const std::vector< Event * > &	fEvents

#include <TMVA/VarTransformHandler.h>

Constructor & Destructor Documentation

VarTransformHandler()

TMVA::VarTransformHandler::VarTransformHandler

(

DataLoader *

dl

)

constructor

Definition at line 49 of file VarTransformHandler.cxx.

~VarTransformHandler()

TMVA::VarTransformHandler::~VarTransformHandler

(

)

destructor

Definition at line 61 of file VarTransformHandler.cxx.

Member Function Documentation

CalcNorm()

void TMVA::VarTransformHandler::CalcNorm ( )

private

Computes maximum, minimum, mean, RMS and variance for all variables and targets.

Definition at line 148 of file VarTransformHandler.cxx.

CopyDataLoader()

void TMVA::VarTransformHandler::CopyDataLoader ( TMVA::DataLoader *  des, TMVA::DataLoader *  src  )

private

Definition at line 287 of file VarTransformHandler.cxx.

Log()

MsgLogger & TMVA::VarTransformHandler::Log ( ) const

inline

message logger

Definition at line 49 of file VarTransformHandler.h.

UpdateNorm()

void TMVA::VarTransformHandler::UpdateNorm ( Int_t  ivar, Double_t  x  )

private

Updates maximum and minimum value of a variable or target.

Definition at line 129 of file VarTransformHandler.cxx.

VarianceThreshold()

TMVA::DataLoader * TMVA::VarTransformHandler::VarianceThreshold

(

Double_t

threshold

)

Computes variance of all the variables and returns a new DataLoader with the selected variables whose variance is above a specific threshold.

Threshold can be provided by user otherwise default value is 0 i.e. remove the variables which have same value in all the events.

Parameters

[in]

threshold

value (Double)

Transformation Definition String Format: "VT(optional float value)"

Usage examples:

String	Description
"VT"	Select variables whose variance is above threshold value = 0 (Default)
"VT(1.5)"	Select variables whose variance is above threshold value = 1.5

Definition at line 84 of file VarTransformHandler.cxx.

Member Data Documentation

fDataLoader

DataLoader* TMVA::VarTransformHandler::fDataLoader

private

Definition at line 54 of file VarTransformHandler.h.

fDataSetInfo

DataSetInfo& TMVA::VarTransformHandler::fDataSetInfo

private

Definition at line 53 of file VarTransformHandler.h.

fEvents

const std::vector<Event*>& TMVA::VarTransformHandler::fEvents

private

Definition at line 55 of file VarTransformHandler.h.

fLogger

MsgLogger* TMVA::VarTransformHandler::fLogger

mutable

Definition at line 48 of file VarTransformHandler.h.

Libraries for TMVA::VarTransformHandler:

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The documentation for this class was generated from the following files:

• tmva/tmva/inc/TMVA/VarTransformHandler.h
• tmva/tmva/src/VarTransformHandler.cxx