DivideDensity Class Reference

Class that describes the "divide" density: the ratio of two densities in the same phase spaces. More...

#include <DivideDensity.hh>

Inheritance diagram for DivideDensity:

Public Member Functions
	DivideDensity (const char *pdfName, AbsPhaseSpace *thePhaseSpace, AbsDensity *d1, AbsDensity *d2)
	Constructor of Divide density. More...
virtual	~DivideDensity ()
	Destructor. More...
Double_t	density (std::vector< Double_t > &x)
	Calculate PDF value at the given point. More...
AbsPhaseSpace *	phaseSpace ()
	Return phase space definition for this PDF. More...
Public Member Functions inherited from AbsDensity
	AbsDensity (const char *pdfName)
	Constructor. More...
virtual	~AbsDensity ()
	Destructor. More...
void	slice (std::vector< Double_t > &x, UInt_t num, TH1F *hist)
	Calculate 1D slice of the PDF. More...
void	slice (std::vector< Double_t > &x, UInt_t numx, UInt_t numy, TH2F *hist, Bool_t inPhaseSpace=true)
	Calculate 2D slice of the PDF. More...
double	transform (TH1F *hist1, TH1F *hist2, double x)
void	project (TH1F *hist)
	Calculate projection of the 1D PDF. More...
void	project (TH2F *hist, Bool_t inPhaseSpace=true)
	Calculate projection of the 2D PDF. More...
void	setMajorant (Double_t majorant)
	Set majorant for accept-reject method. More...
void	setMaxTries (UInt_t maxTries)
	Set maximum number of tries for accept-reject method. More...
Double_t	generate (std::vector< Double_t > &x)
	Generate a single point within the phase space according to the PDF using accept-reject method. More...
void	generate (TNtuple *tree, UInt_t numEvents)
	Generate a sample of points within the phase space according to the PDF using accept-reject method. More...
const char *	name (void)
	Return the name of the PDF. More...
void	setSeed (UInt_t seed=0)
	Set random seed. More...

Private Attributes
AbsPhaseSpace *	m_phaseSpace
	Reference to phase space. More...
AbsDensity *	m_density1
	Density component 1. More...
AbsDensity *	m_density2
	Density component 2. More...
UInt_t	m_dim
	Cached dimensionality of the phase space. More...

Additional Inherited Members
Protected Attributes inherited from AbsDensity
char	m_name [256]
	PDF name. More...
Double_t	m_majorant
	PDF majorant (maximum PDF value needed for accept-reject). More...
UInt_t	m_maxTries
	Maximum number of tries for accept-reject method. More...
TRandom3	m_rnd
	Random number generator. More...

Detailed Description

Class that describes the "divide" density: the ratio of two densities in the same phase spaces.

Definition at line 13 of file DivideDensity.hh.

Constructor & Destructor Documentation

DivideDensity::DivideDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		AbsDensity *	d1,
		AbsDensity *	d2
	)

Constructor of Divide density.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space. Dimensionality of the phase space should be equal to the ones of the components.
[in]	d1	numerator density component.
[in]	d2	denominator density component.

Definition at line 13 of file DivideDensity.cpp.

DivideDensity::~DivideDensity ( )

virtual

Destructor.

Definition at line 37 of file DivideDensity.cpp.

Member Function Documentation

Double_t DivideDensity::density ( std::vector< Double_t > &  x )

virtual

Calculate PDF value at the given point.

Parameters

[in]

x

the point at which to calculate the PDF

Returns

PDF value

Implements AbsDensity.

Definition at line 41 of file DivideDensity.cpp.

AbsPhaseSpace* DivideDensity::phaseSpace ( )

inlinevirtual

Return phase space definition for this PDF.

Returns

PDF phase space

Implements AbsDensity.

Definition at line 43 of file DivideDensity.hh.

Member Data Documentation

AbsDensity* DivideDensity::m_density1

private

Density component 1.

Definition at line 51 of file DivideDensity.hh.

AbsDensity* DivideDensity::m_density2

private

Density component 2.

Definition at line 54 of file DivideDensity.hh.

UInt_t DivideDensity::m_dim

private

Cached dimensionality of the phase space.

Definition at line 57 of file DivideDensity.hh.

AbsPhaseSpace* DivideDensity::m_phaseSpace

private

Reference to phase space.

Definition at line 48 of file DivideDensity.hh.

---

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

• inc/DivideDensity.hh
• src/DivideDensity.cpp