Lau2DHistDPPdf Class Reference

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

#include <Lau2DHistDPPdf.hh>

Inheritance diagram for Lau2DHistDPPdf:

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.
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...
Public Member Functions inherited from Lau2DAbsHistDPPdf
	Lau2DAbsHistDPPdf (LauKinematics *kinematics, const LauVetoes *vetoes, Bool_t useUpperHalfOnly=kFALSE, Bool_t squareDP=kFALSE)
	Constructor. More...
virtual	~Lau2DAbsHistDPPdf ()
	Destructor.
Double_t	getMaxHeight () const
	Retrieve maximum height of the PDF. More...
Public Member Functions inherited from Lau2DAbsDPPdf
	Lau2DAbsDPPdf ()
	Constructor.
virtual	~Lau2DAbsDPPdf ()
	Destructor.

Protected Member Functions
Double_t	getBinHistValue (Int_t xBinNo, Int_t yBinNo) const
	Get the bin content from the histogram. More...
void	calcHistNorm ()
	Calculate the PDF normalisation.
void	checkNormalisation ()
	Check the normalisation calculation.
Protected Member Functions inherited from Lau2DAbsHistDPPdf
const LauKinematics *	getKinematics () const
	Get the kinematics object. More...
const LauVetoes *	getVetoes () const
	Get the vetoes object. More...
void	calcMaxHeight (TH2 *hist)
	Calculate maximum height. More...
void	doBinFluctuation (TH2 *hist)
	Fluctuate the histogram bin contents in accordance with their errors. More...
Bool_t	withinDPBoundaries (Double_t x, Double_t y) const
	Check whether the given co-ordinates are within the kinematic boundary. More...
void	updateKinematics (Double_t x, Double_t y) const
	Update the current co-ordinates in the kinematic space. More...
void	getUpperHalf (Double_t &x, Double_t &y) const
	If only using the upper half of the (symmetric) DP then transform into the correct half. More...

Private Member Functions
	Lau2DHistDPPdf (const Lau2DHistDPPdf &rhs)
	Copy constructor - not implemented.
Lau2DHistDPPdf &	operator= (const Lau2DHistDPPdf &rhs)
	Copy assignment operator - not implemented.

Private Attributes
TH2 *	hist_
	The underlying histogram.
Double_t	minX_
	The histogram x-axis minimum.
Double_t	maxX_
	The histogram x-axis maximum.
Double_t	minY_
	The histogram y-axis minimum.
Double_t	maxY_
	The histogram y-axis maximum.
Double_t	rangeX_
	The histogram x-axis range.
Double_t	rangeY_
	The histogram y-axis range.
Double_t	binXWidth_
	The histogram x-axis bin width.
Double_t	binYWidth_
	The histogram y-axis bin width.
Double_t	invBinXWidth_
	The histogram x-axis inverse bin width.
Double_t	invBinYWidth_
	The histogram y-axis inverse bin width.
Double_t	maxHeight_
	The maximum height of 2D histogram.
Int_t	nBinsX_
	The number of bins on the x-axis of the histogram.
Int_t	nBinsY_
	The number of bins on the y-axis of the histogram.
Double_t	norm_
	The histogram normalisation.
Bool_t	useInterpolation_
	Control boolean for using the linear interpolation.

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 47 of file Lau2DHistDPPdf.hh.

Constructor & Destructor Documentation

Lau2DHistDPPdf()

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). The seed for the random number generator used to fluctuate the bins should first be set using LauRandom::setSeed.
[in]	useUpperHalfOnly	boolean flag to specify that the supplied histogram contains only the upper half of a symmetric DP (or lower half if using square DP coordinates)
[in]	squareDP	boolean flag to specify whether the supplied histogram is in square DP coordinates

Definition at line 41 of file Lau2DHistDPPdf.cc.

Member Function Documentation

getBinHistValue()

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 167 of file Lau2DHistDPPdf.cc.

getHistNorm()

Double_t Lau2DHistDPPdf::getHistNorm ( ) const

inlinevirtual

Retrieve PDF normalisation.

Returns

the normalisation factor

Implements Lau2DAbsHistDPPdf.

Definition at line 77 of file Lau2DHistDPPdf.hh.

interpolateXY()

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

virtual

Perform the interpolation (unnormalised)

Parameters

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

Returns

the unnormalised PDF value

Implements Lau2DAbsHistDPPdf.

Definition at line 196 of file Lau2DHistDPPdf.cc.

interpolateXYNorm()

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

virtual

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

Implements Lau2DAbsHistDPPdf.

Definition at line 189 of file Lau2DHistDPPdf.cc.

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

• /home/epp/phsdba/Development/Laura++/master-dev/laura/inc/Lau2DHistDPPdf.hh
• /home/epp/phsdba/Development/Laura++/master-dev/laura/src/Lau2DHistDPPdf.cc