Class that describes the product density: the product of two or more densities in the same phase spaces. More...

#include <ProductDensity.hh>

Inheritance diagram for ProductDensity:

Public Member Functions
	ProductDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, std::vector< AbsDensity * > &densityComponents)
	Constructor of Product density of an arbitrary number of density components. More...

	ProductDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, AbsDensity d1, AbsDensity d2, AbsDensity d3=0, AbsDensity d4=0)
	Constructor of Product density of up to four density components. More...

virtual	~ProductDensity ()
	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 Member Functions
void	init (AbsPhaseSpace thePhaseSpace, std::vector< AbsDensity > &densityComponents)
	Common initialise function used by all constructors. More...

Private Attributes
AbsPhaseSpace *	m_phaseSpace
	Reference to phase space. More...

std::vector< AbsDensity * >	m_densityComponents
	Vector of density components. 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 product density: the product of two or more densities in the same phase spaces.

Definition at line 13 of file ProductDensity.hh.

Constructor & Destructor Documentation

ProductDensity::ProductDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		std::vector< AbsDensity * > &	densityComponents
	)

Constructor of Product density of an arbitrary number of density components.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space. Dimensionality of the phase space should be equal to the sum of dimensionalities of all density components.
[in]	densityComponents	vector of density components.

Definition at line 13 of file ProductDensity.cpp.

ProductDensity::ProductDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		AbsDensity *	d1,
		AbsDensity *	d2,
		AbsDensity *	d3 = `0`,
		AbsDensity *	d4 = `0`
	)

Constructor of Product density of up to four density components.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space. Dimensionality of the phase space should be equal to the sum of dimensionalities of all density components.
[in]	d1	1st density component.
[in]	d2	2nd density component.
[in]	d3	3rd density component.
[in]	d4	4th density component.

Definition at line 20 of file ProductDensity.cpp.

ProductDensity::~ProductDensity ( )

virtual

Destructor.

Definition at line 37 of file ProductDensity.cpp.

Member Function Documentation

Double_t ProductDensity::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 62 of file ProductDensity.cpp.

void ProductDensity::init	(	AbsPhaseSpace *	thePhaseSpace,
		std::vector< AbsDensity * > &	densityComponents
	)

private

Common initialise function used by all constructors.

Parameters

[in]	thePhaseSpace	phase space
[in]	densityComponents	vector of density components.

Definition at line 41 of file ProductDensity.cpp.

AbsPhaseSpace* ProductDensity::phaseSpace ( )

inlinevirtual

Return phase space definition for this PDF.

Returns: PDF phase space

Implements AbsDensity.

Definition at line 57 of file ProductDensity.hh.

Member Data Documentation

std::vector<AbsDensity*> ProductDensity::m_densityComponents

private

Vector of density components.

Definition at line 73 of file ProductDensity.hh.

UInt_t ProductDensity::m_dim

private

Cached dimensionality of the phase space.

Definition at line 76 of file ProductDensity.hh.

AbsPhaseSpace* ProductDensity::m_phaseSpace

private

Reference to phase space.

Definition at line 70 of file ProductDensity.hh.

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

inc/ProductDensity.hh
src/ProductDensity.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation