#include <BinnedDensity.hh>

Inheritance diagram for BinnedDensity:

Public Member Functions
	BinnedDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, AbsDensity *d, UInt_t bins1, UInt_t bins2=0, UInt_t bins3=0, UInt_t bins4=0, UInt_t bins5=0)
	Constructor that creates the binned density from any AbsDensity of the dimensionality up to five. More...

	BinnedDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, std::vector< UInt_t > &binning, AbsDensity *d)
	Constructor that creates the binned density from any AbsDensity of arbitrary dimensionality. More...

	BinnedDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, const char *fileName, const Double_t cutoff=1.e50)
	Constructor that reads the binned density from a file. The dimensionality of the density stored in the file should match the dimensionality of the phase space. More...

virtual	~BinnedDensity ()
	Destructor. More...

void	setCutoff (Double_t cutoff)
	Set cutoff value. Values in bins greater than cutoff will be made equal to cutoff. More...

void	readFromFile (const char *fileName)
	Read the binned density from a file, ROOT or text depending on the extension. The dimensionality of the density stored in the file should match the dimensionality of the phase space. More...

void	readFromTextFile (const char *fileName)
	Read the binned density from a text file. The dimensionality of the density stored in the file should match the dimensionality of the phase space. More...

void	readFromRootFile (const char *fileName)
	Read the binned density from a ROOT file. The dimensionality of the density stored in the file should match the dimensionality of the phase space. More...

void	writeToFile (const char *fileName)
	Write the binned density into a file (ROOT or text format depending on the extension) More...

void	writeToTextFile (const char *fileName)
	Write the binned density into a file. More...

void	writeToRootFile (const char *fileName)
	Write the binned density into a ROOT file. More...

Double_t	density (std::vector< Double_t > &x)
	Return the value of the PDF in a point. More...

AbsPhaseSpace *	phaseSpace ()
	Return the phase space. 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< UInt_t > &binning, AbsDensity d)
	Common initalisation function used by both constructors from an AbsDensity. More...

Private Attributes
std::vector< Double_t >	m_map
	Map of PDF values in bins. More...

std::vector< UInt_t >	m_binning
	Vector of bin numbers for each variable. More...

AbsPhaseSpace *	m_phaseSpace
	Reference to the phase space definition. More...

AbsDensity *	m_density
	Reference to the input density. More...

Double_t	m_cutoff
	Cutoff value (values in bins greater than cutoff will be make equal to cutoff). 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

A class that describes the PDF which is a multilinear interpolation on the binned grid.

Definition at line 13 of file BinnedDensity.hh.

Constructor & Destructor Documentation

BinnedDensity::BinnedDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		AbsDensity *	d,
		UInt_t	bins1,
		UInt_t	bins2 = `0`,
		UInt_t	bins3 = `0`,
		UInt_t	bins4 = `0`,
		UInt_t	bins5 = `0`
	)

Constructor that creates the binned density from any AbsDensity of the dimensionality up to five.

Constructor that fills bins from AbsDensity.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space
[in]	d	input density
[in]	bins1	number of bins in 1st variable
[in]	bins2	number of bins in 2nd variable
[in]	bins3	number of bins in 3rd variable
[in]	bins4	number of bins in 4th variable
[in]	bins5	number of bins in 5th variable

Definition at line 21 of file BinnedDensity.cpp.

BinnedDensity::BinnedDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		std::vector< UInt_t > &	binning,
		AbsDensity *	d
	)

Constructor that creates the binned density from any AbsDensity of arbitrary dimensionality.

Constructor that fills bins from AbsDensity.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space
[in]	binning	vector of bin numbers for each variable. Vector size should match the dimensionality of the phase space.
[in]	d	input density

Definition at line 40 of file BinnedDensity.cpp.

BinnedDensity::BinnedDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		const char *	fileName,
		const Double_t	cutoff = `1.e50`
	)

Constructor that reads the binned density from a file. The dimensionality of the density stored in the file should match the dimensionality of the phase space.

Constructor that reads from file.

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space
[in]	fileName	input file name
[in]	cutoff	cutoff value

Definition at line 145 of file BinnedDensity.cpp.

BinnedDensity::~BinnedDensity ( )

virtual

Destructor.

Definition at line 394 of file BinnedDensity.cpp.

Member Function Documentation

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

virtual

Return the value of the PDF in a point.

Parameters

[in] x point

Returns: PDF value

Implements AbsDensity.

Definition at line 550 of file BinnedDensity.cpp.

void BinnedDensity::init	(	AbsPhaseSpace *	thePhaseSpace,
		std::vector< UInt_t > &	binning,
		AbsDensity *	d
	)

private

Common initalisation function used by both constructors from an AbsDensity.

Initialise method used by both constructors.

Parameters

[in]	thePhaseSpace	phase space
[in]	binning	vector of bin numbers for each variable. Vector size should match the dimensionality of the phase space.
[in]	d	input density

Definition at line 48 of file BinnedDensity.cpp.

AbsPhaseSpace* BinnedDensity::phaseSpace ( )

inlinevirtual

Return the phase space.

Returns: phase space

Implements AbsDensity.

Definition at line 117 of file BinnedDensity.hh.

void BinnedDensity::readFromFile ( const char * fileName )

Read the binned density from a file, ROOT or text depending on the extension. The dimensionality of the density stored in the file should match the dimensionality of the phase space.

Parameters

[in] fileName input file name

Definition at line 153 of file BinnedDensity.cpp.

void BinnedDensity::readFromRootFile ( const char * fileName )

Read the binned density from a ROOT file. The dimensionality of the density stored in the file should match the dimensionality of the phase space.

Read from ROOT file.

Parameters

[in] fileName input file name

Definition at line 270 of file BinnedDensity.cpp.

void BinnedDensity::readFromTextFile ( const char * fileName )

Read the binned density from a text file. The dimensionality of the density stored in the file should match the dimensionality of the phase space.

Read from text file.

Parameters

[in] fileName input file name

Definition at line 162 of file BinnedDensity.cpp.

void BinnedDensity::setCutoff ( Double_t cutoff )

inline

Set cutoff value. Values in bins greater than cutoff will be made equal to cutoff.

Parameters

[in] cutoff cutoff value

Definition at line 68 of file BinnedDensity.hh.

void BinnedDensity::writeToFile ( const char * fileName )

Write the binned density into a file (ROOT or text format depending on the extension)

Parameters

[in] fileName output file name

Definition at line 398 of file BinnedDensity.cpp.

void BinnedDensity::writeToRootFile ( const char * fileName )

Write the binned density into a ROOT file.

Write density map to a ROOT file.

Parameters

[in] fileName output ROOT file name

Definition at line 471 of file BinnedDensity.cpp.

void BinnedDensity::writeToTextFile ( const char * fileName )

Write the binned density into a file.

Write density map to file.

Parameters

[in] fileName output file name

Definition at line 407 of file BinnedDensity.cpp.

Member Data Documentation

std::vector<UInt_t> BinnedDensity::m_binning

private

Vector of bin numbers for each variable.

Definition at line 135 of file BinnedDensity.hh.

Double_t BinnedDensity::m_cutoff

private

Cutoff value (values in bins greater than cutoff will be make equal to cutoff).

Definition at line 144 of file BinnedDensity.hh.

AbsDensity* BinnedDensity::m_density

private

Reference to the input density.

Definition at line 141 of file BinnedDensity.hh.

std::vector<Double_t> BinnedDensity::m_map

private

Map of PDF values in bins.

Definition at line 132 of file BinnedDensity.hh.

AbsPhaseSpace* BinnedDensity::m_phaseSpace

private

Reference to the phase space definition.

Definition at line 138 of file BinnedDensity.hh.

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

inc/BinnedDensity.hh
src/BinnedDensity.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation