#include <PolynomialDensity.hh>

Inheritance diagram for PolynomialDensity:

Public Member Functions
	PolynomialDensity (const char pdfName, OneDimPhaseSpace thePhaseSpace, UInt_t maxPower, TTree tree, const char var, UInt_t maxEvents=0)

	PolynomialDensity (const char pdfName, AbsPhaseSpace thePhaseSpace, UInt_t maxPower, TTree tree, const char var1, const char *var2, UInt_t integEvents, UInt_t maxEvents=0)

virtual	~PolynomialDensity ()
	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	readTuple (TTree *tree, std::vector< TString > &vars, UInt_t maxEvents=0)
	Read Ntuple contaning data points to be used for the fit. More...

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

UInt_t	m_dim
	Cached dimensionality of the phase space. More...

Double_t	m_par [100]
	Vector of fitted parameters. More...

UInt_t	m_power
	Power of the polynomial. 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 polynomial density which can be fitted to the data sample from NTuple The phase space dimensionality must be either 1 or 2

Definition at line 14 of file PolynomialDensity.hh.

Constructor & Destructor Documentation

PolynomialDensity::PolynomialDensity	(	const char *	pdfName,
		OneDimPhaseSpace *	thePhaseSpace,
		UInt_t	maxPower,
		TTree *	tree,
		const char *	var,
		UInt_t	maxEvents = `0`
	)

Constructor for 1D polynomial density. Integration over the 1D phase space is performed analytically

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space definition
[in]	maxPower	maximum power of the polynomial
[in]	tree	ROOT tree containing data
[in]	var	name of the tree variable
[in]	maxEvents	maximum number of events to read from tree

Definition at line 156 of file PolynomialDensity.cpp.

PolynomialDensity::PolynomialDensity	(	const char *	pdfName,
		AbsPhaseSpace *	thePhaseSpace,
		UInt_t	maxPower,
		TTree *	tree,
		const char *	var1,
		const char *	var2,
		UInt_t	integEvents,
		UInt_t	maxEvents = `0`
	)

Constructor for 2D polynomial density. Integration over the 2D phase space is performed numerically (using MC integration).

Parameters

[in]	pdfName	PDF name
[in]	thePhaseSpace	phase space definition
[in]	maxPower	maximum power of the polynomial
[in]	tree	ROOT tree containing data
[in]	var1	name of the 1st tree variable
[in]	var2	name of the 2nd tree variable
[in]	integEvents	number of events for MC integration
[in]	maxEvents	maximum number of events to read from tree

Definition at line 210 of file PolynomialDensity.cpp.

PolynomialDensity::~PolynomialDensity ( )

virtual

Destructor.

Definition at line 295 of file PolynomialDensity.cpp.

Member Function Documentation

Double_t PolynomialDensity::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 (equals 1 inside phase space, 0 outside it)

Implements AbsDensity.

Definition at line 366 of file PolynomialDensity.cpp.

AbsPhaseSpace* PolynomialDensity::phaseSpace ( )

inlinevirtual

Return phase space definition for this PDF.

Returns: PDF phase space

Implements AbsDensity.

Definition at line 70 of file PolynomialDensity.hh.

void PolynomialDensity::readTuple	(	TTree *	tree,
		std::vector< TString > &	vars,
		UInt_t	maxEvents = `0`
	)

private

Read Ntuple contaning data points to be used for the fit.

Definition at line 299 of file PolynomialDensity.cpp.

Member Data Documentation

UInt_t PolynomialDensity::m_dim

private

Cached dimensionality of the phase space.

Definition at line 81 of file PolynomialDensity.hh.

Double_t PolynomialDensity::m_par[100]

private

Vector of fitted parameters.

Definition at line 84 of file PolynomialDensity.hh.

AbsPhaseSpace* PolynomialDensity::m_phaseSpace

private

Reference to phase space.

Definition at line 78 of file PolynomialDensity.hh.

UInt_t PolynomialDensity::m_power

private

Power of the polynomial.

Definition at line 87 of file PolynomialDensity.hh.

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

inc/PolynomialDensity.hh
src/PolynomialDensity.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation