Utility class to allow the calculation of the chisq of the fit to the Dalitz plot. More...

#include <LauCalcChiSq.hh>

Public Member Functions
	LauCalcChiSq (const TString &inputFileName="chiSqInput.txt")
	Constructor. More...

virtual	~LauCalcChiSq ()
	Destructor. More...

void	setVerbose (const Bool_t flag)
	Toggle verbose printout. More...

void	run ()
	Run the calculations. More...

Private Member Functions
void	initialiseHistos ()
	Read the config file, read the data and create histograms. More...

void	pickBinning (const Double_t xs, const Double_t ys, const Int_t nEntries, std::vector< Int_t > &divisions)
	Choose the binning scheme. More...

void	getHisto (const Double_t xMin, const Double_t xMax, const Double_t yMin, const Double_t yMax, const Double_t xs, const Double_t ys, const Int_t nEntries, const std::vector< Int_t > &divisions, const UInt_t iter=0)
	Create the template histogram based on the binning scheme. More...

void	calculateChiSq ()
	Calculate the chisq from the data histograms. More...

void	makePlots ()
	Create plots. More...

Private Attributes
TString	inputFileName_
	Name of the config file. More...

TString	fileName1_
	Name of the low stats data file. More...

TString	fileName2_
	Name of the high stats data file. More...

TString	treeName1_
	Name of the low stats data tree. More...

TString	treeName2_
	Name of the high stats data tree. More...

TString	xName1_
	Name of the x-coordinate branch in tree 1. More...

TString	xName2_
	Name of the x-coordinate branch in tree 2. More...

TString	yName1_
	Name of the y-coordinate branch in tree 1. More...

TString	yName2_
	Name of the y-coordinate branch in tree 2. More...

Float_t	minContent_
	The minimum bin content. More...

TH2Poly *	theHisto_
	Template histogram constructed from the binning scheme. More...

TH2Poly *	histo1_
	Histogram (constructed from template) filled from tree 1. More...

TH2Poly *	histo2_
	Histogram (constructed from template) filled from tree 2. More...

TH2Poly *	pullHisto_
	Histogram (constructed from template) filled with pulls of tree1 vs tree2. More...

TH2Poly *	chiSqHisto_
	Histogram (constructed from template) filled with chisq of tree1 vs tree2. More...

TH2Poly *	chiSqSignedHisto_
	Histogram (constructed from template) filled with signed chisq of tree1 vs tree2. More...

Float_t	xMin_
	Minimum x coordinate of histograms. More...

Float_t	xMax_
	Maximum x coordinate of histograms. More...

Float_t	yMin_
	Minimum y coordinate of histograms. More...

Float_t	yMax_
	Maximum y coordinate of histograms. More...

Int_t	nParams_
	Number of free parameters in fit (used for calculating the ndof) More...

Float_t	scaleFactor_
	Scalefactor between low and high stats data samples. More...

Bool_t	verbose_
	Verbose flag. More...

Detailed Description

Utility class to allow the calculation of the chisq of the fit to the Dalitz plot.

A utility class to allow the calculation of the chisq of the fit to the Dalitz plot.

A text config file is provided that gives the datasets for the data and toy MC generated from the fit results. These can be in the traditional DP or the square DP.

A sample config file is provided. The fields are:

<name of file containing data histogram> <name of data tree> <name of the x axis variable in data> <name of the y axis variable in data>
<name of file containing toy MC histogram> <name of toy MC tree> <name of the x axis variable in toy MC> <name of the y axis variable in toy MC>
<the minimum content for any bin> <the number of free parameter in the fit> <the scalefactor by which the toy MC bin content should be multiplied> <minimum x value> <maximum x value> <minimum y value> <maximum y value>

Definition at line 50 of file LauCalcChiSq.hh.

Constructor & Destructor Documentation

LauCalcChiSq::LauCalcChiSq ( const TString & inputFileName = "chiSqInput.txt" )

Constructor.

Parameters

[in] inputFileName name of the config file

Definition at line 71 of file LauCalcChiSq.cc.

LauCalcChiSq::~LauCalcChiSq ( )

virtual

Destructor.

Definition at line 96 of file LauCalcChiSq.cc.

Member Function Documentation

void LauCalcChiSq::calculateChiSq ( )

private

Calculate the chisq from the data histograms.

Definition at line 128 of file LauCalcChiSq.cc.

void LauCalcChiSq::getHisto	(	const Double_t	xMin,
		const Double_t	xMax,
		const Double_t	yMin,
		const Double_t	yMax,
		const Double_t *	xs,
		const Double_t *	ys,
		const Int_t	nEntries,
		const std::vector< Int_t > &	divisions,
		const UInt_t	iter = `0`
	)

private

Create the template histogram based on the binning scheme.

This function is called recursively to perform subdivisions

Parameters

[in]	xMin	the minimum x coordinate of the region to be (sub)divided
[in]	xMax	the maximum x coordinate of the region to be (sub)divided
[in]	yMin	the minimum y coordinate of the region to be (sub)divided
[in]	yMax	the maximum y coordinate of the region to be (sub)divided
[in]	xs	x coordinates of low statistics sample
[in]	ys	y coordinates of low statistics sample
[in]	nEntries	number of entries in low statistics sample
[in]	divisions	the binning scheme
[in]	iter	indicates depth of the subdivisions

Definition at line 467 of file LauCalcChiSq.cc.

void LauCalcChiSq::initialiseHistos ( )

private

Read the config file, read the data and create histograms.

Definition at line 258 of file LauCalcChiSq.cc.

void LauCalcChiSq::makePlots ( )

private

Create plots.

Definition at line 168 of file LauCalcChiSq.cc.

void LauCalcChiSq::pickBinning	(	const Double_t *	xs,
		const Double_t *	ys,
		const Int_t	nEntries,
		std::vector< Int_t > &	divisions
	)

private

Choose the binning scheme.

Parameters

[in]	xs	x coordinates of low statistics sample
[in]	ys	y coordinates of low statistics sample
[in]	nEntries	number of entries in low statistics sample
[out]	divisions	resulting binning scheme

Definition at line 402 of file LauCalcChiSq.cc.

void LauCalcChiSq::run ( )

Run the calculations.

Definition at line 100 of file LauCalcChiSq.cc.

void LauCalcChiSq::setVerbose ( const Bool_t flag )

inline

Toggle verbose printout.

Parameters

[in] flag true to enable verbose printout, false to disable

Definition at line 67 of file LauCalcChiSq.hh.

Member Data Documentation

TH2Poly* LauCalcChiSq::chiSqHisto_

private

Histogram (constructed from template) filled with chisq of tree1 vs tree2.

Definition at line 140 of file LauCalcChiSq.hh.

TH2Poly* LauCalcChiSq::chiSqSignedHisto_

private

Histogram (constructed from template) filled with signed chisq of tree1 vs tree2.

Definition at line 142 of file LauCalcChiSq.hh.

TString LauCalcChiSq::fileName1_

private

Name of the low stats data file.

Definition at line 111 of file LauCalcChiSq.hh.

TString LauCalcChiSq::fileName2_

private

Name of the high stats data file.

Definition at line 113 of file LauCalcChiSq.hh.

TH2Poly* LauCalcChiSq::histo1_

private

Histogram (constructed from template) filled from tree 1.

Definition at line 134 of file LauCalcChiSq.hh.

TH2Poly* LauCalcChiSq::histo2_

private

Histogram (constructed from template) filled from tree 2.

Definition at line 136 of file LauCalcChiSq.hh.

TString LauCalcChiSq::inputFileName_

private

Name of the config file.

Definition at line 108 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::minContent_

private

The minimum bin content.

Definition at line 129 of file LauCalcChiSq.hh.

Int_t LauCalcChiSq::nParams_

private

Number of free parameters in fit (used for calculating the ndof)

Definition at line 154 of file LauCalcChiSq.hh.

TH2Poly* LauCalcChiSq::pullHisto_

private

Histogram (constructed from template) filled with pulls of tree1 vs tree2.

Definition at line 138 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::scaleFactor_

private

Scalefactor between low and high stats data samples.

Definition at line 157 of file LauCalcChiSq.hh.

TH2Poly* LauCalcChiSq::theHisto_

private

Template histogram constructed from the binning scheme.

Definition at line 132 of file LauCalcChiSq.hh.

TString LauCalcChiSq::treeName1_

private

Name of the low stats data tree.

Definition at line 115 of file LauCalcChiSq.hh.

TString LauCalcChiSq::treeName2_

private

Name of the high stats data tree.

Definition at line 117 of file LauCalcChiSq.hh.

Bool_t LauCalcChiSq::verbose_

private

Verbose flag.

Definition at line 160 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::xMax_

private

Maximum x coordinate of histograms.

Definition at line 147 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::xMin_

private

Minimum x coordinate of histograms.

Definition at line 145 of file LauCalcChiSq.hh.

TString LauCalcChiSq::xName1_

private

Name of the x-coordinate branch in tree 1.

Definition at line 120 of file LauCalcChiSq.hh.

TString LauCalcChiSq::xName2_

private

Name of the x-coordinate branch in tree 2.

Definition at line 122 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::yMax_

private

Maximum y coordinate of histograms.

Definition at line 151 of file LauCalcChiSq.hh.

Float_t LauCalcChiSq::yMin_

private

Minimum y coordinate of histograms.

Definition at line 149 of file LauCalcChiSq.hh.

TString LauCalcChiSq::yName1_

private

Name of the y-coordinate branch in tree 1.

Definition at line 124 of file LauCalcChiSq.hh.

TString LauCalcChiSq::yName2_

private

Name of the y-coordinate branch in tree 2.

Definition at line 126 of file LauCalcChiSq.hh.

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

inc/LauCalcChiSq.hh
src/LauCalcChiSq.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation