Lau2DSplineDPPdf Class Reference

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

#include <Lau2DSplineDPPdf.hh>

Inheritance diagram for Lau2DSplineDPPdf:

Public Member Functions
	Lau2DSplineDPPdf (const TH2 *hist, LauKinematics *kinematics, const LauVetoes *vetoes, Bool_t fluctuateBins=kFALSE, Bool_t useUpperHalfOnly=kFALSE, Bool_t squareDP=kFALSE)
	Constructor. More...
virtual	~Lau2DSplineDPPdf ()
	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
void	calcHistNorm ()
	Calculate the PDF normalisation.
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
	Lau2DSplineDPPdf (const Lau2DSplineDPPdf &rhs)
	Copy constructor - not implemented.
Lau2DSplineDPPdf &	operator= (const Lau2DSplineDPPdf &rhs)
	Copy assignment operator - not implemented.

Private Attributes
Double_t	maxHeight_
	The maximum height of 2D histogram.
Double_t	norm_
	The histogram normalisation.
Lau2DCubicSpline *	spline_
	A 2D cubic spline generated from the histogram.

Detailed Description

Class for defining a 2D DP spline PDF.

Class for defining a 2D DP spline PDF. Employs a 2D cubic spline to get the histogram value based on an input histogram. 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 48 of file Lau2DSplineDPPdf.hh.

Constructor & Destructor Documentation

Lau2DSplineDPPdf()

Lau2DSplineDPPdf::Lau2DSplineDPPdf	(	const TH2 *	hist,
		LauKinematics *	kinematics,
		const LauVetoes *	vetoes,
		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]	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 43 of file Lau2DSplineDPPdf.cc.

Member Function Documentation

getHistNorm()

Double_t Lau2DSplineDPPdf::getHistNorm ( ) const

inlinevirtual

Retrieve PDF normalisation.

Returns

the normalisation factor

Implements Lau2DAbsHistDPPdf.

Definition at line 76 of file Lau2DSplineDPPdf.hh.

interpolateXY()

Double_t Lau2DSplineDPPdf::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 89 of file Lau2DSplineDPPdf.cc.

interpolateXYNorm()

Double_t Lau2DSplineDPPdf::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 82 of file Lau2DSplineDPPdf.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/Lau2DSplineDPPdf.hh
• /home/epp/phsdba/Development/Laura++/master-dev/laura/src/Lau2DSplineDPPdf.cc