APWeightSumEnsemble Class Reference

#include <APWeightSumEnsemble.h>

Inheritance diagram for APWeightSumEnsemble:

List of all members.

Public Member Functions
	APWeightSumEnsemble ()
virtual	~APWeightSumEnsemble ()
void	SetRelPrecision (double rel_prec)
void	AddWeightToEvt (APWeightEntry *weight)
void	FinishEvt (double ext_weight=1.0)
double	GetQuantile (const double prob)
double	GetRandom ()
double	GetEnsemblePDFMode ()
double	GetEnsemblePDFStdDev ()
TH1F *	GetPDF ()

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Detailed Description

Class to calculate the sum of weights ("weighted counter")

Calculates the sum of weights taking into account the underlying asymmetric probability distribution. This is done by modelling the pdf and then extracting the corresponding quantiles.

Author:

fabian.Kohn@cern.ch

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Constructor & Destructor Documentation

APWeightSumEnsemble::APWeightSumEnsemble

(

)

Default constructor.

APWeightSumEnsemble::~APWeightSumEnsemble

(

)

[virtual]

Default destructor.

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Member Function Documentation

void APWeightSumEnsemble::AddWeightToEvt

(

APWeightEntry *

weight

)

Adds a weight to the sum of weights.

Reimplemented from APWeightSum.

void APWeightSumEnsemble::FinishEvt

(

double

ext_weight = 1.0

)

Finishes the current event and calculates the event weight. Takes an optional external weight factor (e.g. mc weight).

Reimplemented from APWeightSum.

double APWeightSumEnsemble::GetEnsemblePDFMode

(

)

Returns the Mode (= sum of weights from PDF). (Invokes Ensemble Test)

double APWeightSumEnsemble::GetEnsemblePDFStdDev

(

)

Returns the standard deviation from PDF . (Invokes Ensemble Test)

TH1F * APWeightSumEnsemble::GetPDF

(

)

Returns the calculated PDF. (Invokes Ensemble Test)

double APWeightSumEnsemble::GetQuantile

(

const double

prob

)

Returns the quantlile for p=prob for the distribution. (Invokes Ensemble Test)

double APWeightSumEnsemble::GetRandom

(

)

Returns a random value according to the pdf. (Invokes Ensemble Test)

void APWeightSumEnsemble::SetRelPrecision

(

double

rel_prec

)

Sets the relative precision of the gaussian fit to stop the ensemble test at.

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

• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/ReweightUtils/ReweightUtils/APWeightSumEnsemble.h
• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/ReweightUtils/Root/APWeightSumEnsemble.cxx