Class for defining a 2D DP histogram PDF. More...

#include <Lau2DHistDPPdf.hh>

Public Member Functions
	Lau2DHistDPPdf (const TH2 hist, LauKinematics kinematics, const LauVetoes *vetoes, Bool_t useInterpolation=kTRUE, Bool_t fluctuateBins=kFALSE, Bool_t useUpperHalfOnly=kFALSE, Bool_t squareDP=kFALSE)
	Constructor. More...

virtual	~Lau2DHistDPPdf ()
	Destructor. More...

Double_t	getMaxHeight () const
	Retrieve maximum height. More...

Double_t	getHistNorm () const
	Retrieve PDF normalisation. More...

Double_t	interpolateXY (Double_t x, Double_t y) const
	Perform the interpolation (unnormalised) More...

Double_t	interpolateXYNorm (Double_t x, Double_t y) const
	Perform the interpolation and divide by the normalisation. More...

Protected Member Functions
Double_t	getBinHistValue (Int_t xBinNo, Int_t yBinNo) const
	Get the bin content from the histogram. More...

void	calcMaxHeight ()
	Calculate maximum height. More...

void	calcHistNorm ()
	Calculate the PDF normalisation. More...

void	checkNormalisation ()
	Check the normalisation calculation. More...

void	doBinFluctuation ()
	Fluctuate the histogram bin contents in accordance with their errors. More...

Private Attributes
TH2 *	hist_
	The underlying histogram. More...

LauKinematics *	kinematics_
	DP kinematics. More...

const LauVetoes *	vetoes_
	Vetos within DP. More...

Double_t	minX_
	The histogram x-axis minimum. More...

Double_t	maxX_
	The histogram x-axis maximum. More...

Double_t	minY_
	The histogram y-axis minimum. More...

Double_t	maxY_
	The histogram y-axis maximum. More...

Double_t	rangeX_
	The histogram x-axis range. More...

Double_t	rangeY_
	The histogram y-axis range. More...

Double_t	binXWidth_
	The histogram x-axis bin width. More...

Double_t	binYWidth_
	The histogram y-axis bin width. More...

Double_t	invBinXWidth_
	The histogram x-axis inverse bin width. More...

Double_t	invBinYWidth_
	The histogram y-axis inverse bin width. More...

Double_t	maxHeight_
	The maximum height of 2D histogram. More...

Int_t	nBinsX_
	The number of bins on the x-axis of the histogram. More...

Int_t	nBinsY_
	The number of bins on the y-axis of the histogram. More...

Double_t	norm_
	The histogram normalisation. More...

Bool_t	useInterpolation_
	Control boolean for using the linear interpolation. More...

Bool_t	upperHalf_
	Boolean for using the upper half of DP. More...

Bool_t	squareDP_
	Boolean for using square DP variables. More...

Detailed Description

Class for defining a 2D DP histogram PDF.

Class for defining a 2D DP histogram PDF. Employs linear interpolation to get the histogram value based on how far away a point in (x,y) is to nearby bin centres. The returned values are normalised to the total area. The histogram can be defined in the conventional DP (m13Sq vs m23Sq) or in the square DP.

Definition at line 33 of file Lau2DHistDPPdf.hh.

Constructor & Destructor Documentation

Lau2DHistDPPdf::Lau2DHistDPPdf	(	const TH2 *	hist,
		LauKinematics *	kinematics,
		const LauVetoes *	vetoes,
		Bool_t	useInterpolation = `kTRUE`,
		Bool_t	fluctuateBins = `kFALSE`,
		Bool_t	useUpperHalfOnly = `kFALSE`,
		Bool_t	squareDP = `kFALSE`
	)

Constructor.

Parameters

[in]	hist	the 2D DP histogram
[in]	kinematics	the current DP kinematics
[in]	vetoes	the vetoes within the DP
[in]	useInterpolation	boolean flag to determine whether linear interpolation between bins should be used or simply the raw bin values
[in]	fluctuateBins	boolean flag to determine whether the bin contents should be fluctuated in accordance with their errors (useful for systematic error evaluation)
[in]	useUpperHalfOnly	boolean flag to specify that the supplied histogram contains only the upper half of a symmetric DP
[in]	squareDP	boolean flag to specify whether the supplied histogram is in square DP coordinates

Definition at line 29 of file Lau2DHistDPPdf.cc.

Lau2DHistDPPdf::~Lau2DHistDPPdf ( )

virtual

Destructor.

Definition at line 96 of file Lau2DHistDPPdf.cc.

Member Function Documentation

void Lau2DHistDPPdf::calcHistNorm ( )

protected

Calculate the PDF normalisation.

Definition at line 114 of file Lau2DHistDPPdf.cc.

void Lau2DHistDPPdf::calcMaxHeight ( )

protected

Calculate maximum height.

Definition at line 102 of file Lau2DHistDPPdf.cc.

void Lau2DHistDPPdf::checkNormalisation ( )

protected

Check the normalisation calculation.

Definition at line 375 of file Lau2DHistDPPdf.cc.

void Lau2DHistDPPdf::doBinFluctuation ( )

protected

Fluctuate the histogram bin contents in accordance with their errors.

Definition at line 415 of file Lau2DHistDPPdf.cc.

Double_t Lau2DHistDPPdf::getBinHistValue	(	Int_t	xBinNo,
		Int_t	yBinNo
	)		const

protected

Get the bin content from the histogram.

Parameters

[in]	xBinNo	the x-axis bin number
[in]	yBinNo	the y-axis bin number

Returns: the bin conent

Definition at line 147 of file Lau2DHistDPPdf.cc.

Double_t Lau2DHistDPPdf::getHistNorm ( ) const

inline

Retrieve PDF normalisation.

Definition at line 57 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::getMaxHeight ( ) const

inline

Retrieve maximum height.

Definition at line 54 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::interpolateXY	(	Double_t	x,
		Double_t	y
	)		const

Perform the interpolation (unnormalised)

Parameters

[in]	x	the x-axis value
[in]	y	the y-aixs value

Returns: the unnormalised PDF value

Definition at line 177 of file Lau2DHistDPPdf.cc.

Double_t Lau2DHistDPPdf::interpolateXYNorm	(	Double_t	x,
		Double_t	y
	)		const

Perform the interpolation and divide by the normalisation.

Parameters

[in]	x	the x-axis abscissa value
[in]	y	the y-axis abscissa value

Returns: the normalised PDF value

Definition at line 169 of file Lau2DHistDPPdf.cc.

Member Data Documentation

Double_t Lau2DHistDPPdf::binXWidth_

private

The histogram x-axis bin width.

Definition at line 120 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::binYWidth_

private

The histogram y-axis bin width.

Definition at line 122 of file Lau2DHistDPPdf.hh.

TH2* Lau2DHistDPPdf::hist_

private

The underlying histogram.

Definition at line 98 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::invBinXWidth_

private

The histogram x-axis inverse bin width.

Definition at line 124 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::invBinYWidth_

private

The histogram y-axis inverse bin width.

Definition at line 126 of file Lau2DHistDPPdf.hh.

LauKinematics* Lau2DHistDPPdf::kinematics_

private

DP kinematics.

Definition at line 101 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::maxHeight_

private

The maximum height of 2D histogram.

Definition at line 129 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::maxX_

private

The histogram x-axis maximum.

Definition at line 109 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::maxY_

private

The histogram y-axis maximum.

Definition at line 113 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::minX_

private

The histogram x-axis minimum.

Definition at line 107 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::minY_

private

The histogram y-axis minimum.

Definition at line 111 of file Lau2DHistDPPdf.hh.

Int_t Lau2DHistDPPdf::nBinsX_

private

The number of bins on the x-axis of the histogram.

Definition at line 132 of file Lau2DHistDPPdf.hh.

Int_t Lau2DHistDPPdf::nBinsY_

private

The number of bins on the y-axis of the histogram.

Definition at line 134 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::norm_

private

The histogram normalisation.

Definition at line 137 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::rangeX_

private

The histogram x-axis range.

Definition at line 115 of file Lau2DHistDPPdf.hh.

Double_t Lau2DHistDPPdf::rangeY_

private

The histogram y-axis range.

Definition at line 117 of file Lau2DHistDPPdf.hh.

Bool_t Lau2DHistDPPdf::squareDP_

private

Boolean for using square DP variables.

Definition at line 144 of file Lau2DHistDPPdf.hh.

Bool_t Lau2DHistDPPdf::upperHalf_

private

Boolean for using the upper half of DP.

Definition at line 142 of file Lau2DHistDPPdf.hh.

Bool_t Lau2DHistDPPdf::useInterpolation_

private

Control boolean for using the linear interpolation.

Definition at line 140 of file Lau2DHistDPPdf.hh.

const LauVetoes* Lau2DHistDPPdf::vetoes_

private

Vetos within DP.

Definition at line 104 of file Lau2DHistDPPdf.hh.

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

inc/Lau2DHistDPPdf.hh
src/Lau2DHistDPPdf.cc

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation