Class for jets with (E, eta, phi) in kinematic fits. More...

#include <JetFitObject.h>

Inheritance diagram for JetFitObject:

Collaboration diagram for JetFitObject:

[legend]

Public Member Functions
	JetFitObject (double E, double theta, double phi, double DE, double Dtheta, double Dphi, double m=0)

	JetFitObject (const JetFitObject &rhs)
	Copy constructor. More...

JetFitObject &	operator= (const JetFitObject &rhs)
	Assignment. More...

virtual JetFitObject *	copy () const override
	Return a new copy of itself.

virtual JetFitObject &	assign (const BaseFitObject &source) override
	Assign from anther object, if of same type. More...

virtual const char *	getParamName (int ilocal) const override
	Get name of parameter ilocal. More...

virtual bool	updateParams (double p[], int idim) override
	Read values from global vector, readjust vector; return: significant change. More...

virtual int	getNPar () const override
	Get total number of parameters of this FitObject.

virtual double	getDPx (int ilocal) const override
	Return d p_x / d par_ilocal (derivative of px w.r.t. local parameter ilocal) More...

virtual double	getDPy (int ilocal) const override
	Return d p_y / d par_ilocal (derivative of py w.r.t. local parameter ilocal) More...

virtual double	getDPz (int ilocal) const override
	Return d p_z / d par_ilocal (derivative of pz w.r.t. local parameter ilocal) More...

virtual double	getDE (int ilocal) const override
	Return d E / d par_ilocal (derivative of E w.r.t. local parameter ilocal) More...

virtual double	getCov (int ilocal, int jlocal) const override
	Get covariance between parameters ilocal and jlocal. More...

virtual double	getError (int ilocal) const override
	Get error of parameter ilocal. More...

virtual double	getFirstDerivative_Meta_Local (int iMeta, int ilocal, int metaSet) const override
	add derivatives to vector der of size idim pxfactdpx/dx_i + pyfactdpy/dx_i + pzfactdpz/dx_i + efactdE/dx_i

virtual double	getSecondDerivative_Meta_Local (int iMeta, int ilocal, int jlocal, int metaSet) const override

virtual bool	setMass (double mass_)
	Set mass of particle; return=success.

virtual double	getMass () const
	Get mass of particle.

virtual std::ostream &	print4Vector (std::ostream &os) const
	print the four-momentum (E, px, py, pz) More...

virtual FourVector	getFourMomentum () const

virtual double	getE () const
	Return E.

virtual double	getPx () const
	Return px.

virtual double	getPy () const
	Return py.

virtual double	getPz () const
	Return pz.

virtual double	getP () const
	Return p (momentum)

virtual double	getP2 () const
	Return p (momentum) squared.

virtual double	getPt () const
	Return pt (transverse momentum)

virtual double	getPt2 () const
	Return pt (transverse momentum) squared.

virtual void	getDerivatives (double der[], int idim) const override

virtual void	addToGlobalChi2DerMatrixNum (double *M, int idim, double eps)
	Add numerically determined derivatives of chi squared to global covariance matrix. More...

virtual void	addToGlobalChi2DerVectorNum (double *y, int idim, double eps)
	Add numerically determined derivatives of chi squared to global derivative vector. More...

virtual std::ostream &	print (std::ostream &os) const override
	print object to ostream More...

void	test1stDerivatives ()

void	test2ndDerivatives ()

double	num1stDerivative (int ilocal, double eps)
	Evaluates numerically the 1st derivative of chi2 w.r.t. a parameter. More...

double	num2ndDerivative (int ilocal1, double eps1, int ilocal2, double eps2)
	Evaluates numerically the 2nd derivative of chi2 w.r.t. 2 parameters. More...

virtual double	getChi2 () const override
	Get chi squared from measured and fitted parameters.

virtual bool	setParam (int ilocal, double par_, bool measured_, bool fixed_=false)
	Set value and measured flag of parameter i; return: significant change. More...

virtual bool	setParam (int ilocal, double par_)
	Set value of parameter ilocal; return: significant change. More...

virtual bool	setMParam (int ilocal, double mpar_)
	Set measured value of parameter ilocal; return: success. More...

virtual bool	setError (int ilocal, double err_)
	Set error of parameter ilocal; return: success. More...

virtual bool	setCov (int ilocal, int jlocal, double cov_)
	Set covariance of parameters ilocal and jlocal; return: success. More...

virtual bool	setGlobalParNum (int ilocal, int iglobal)
	Set number of parameter ilocal in global list return true signals OK. More...

virtual bool	fixParam (int ilocal, bool fix=true)
	Fix a parameter (fix=true), or release it (fix=false) More...

virtual bool	releaseParam (int ilocal)
	Release a parameter. More...

virtual bool	isParamFixed (int ilocal) const
	Returns whether parameter is fixed. More...

virtual double	getParam (int ilocal) const
	Get current value of parameter ilocal. More...

virtual const char *	getName () const
	Get object's name.

void	setName (const char *name_)
	Set object's name.

virtual double	getMParam (int ilocal) const
	Get measured value of parameter ilocal. More...

virtual double	getRho (int ilocal, int jlocal) const
	Get correlation coefficient between parameters ilocal and jlocal. More...

virtual bool	isParamMeasured (int ilocal) const
	Get measured flag for parameter ilocal. More...

virtual int	getGlobalParNum (int ilocal) const
	Get global parameter number of parameter ilocal. More...

virtual int	getNMeasured () const
	Get number of measured parameters of this FitObject.

virtual int	getNUnmeasured () const
	Get number of unmeasured parameters of this FitObject.

virtual int	getNFree () const
	Get number of free parameters of this FitObject.

virtual int	getNFixed () const
	Get number of fixed parameters of this FitObject.

virtual double	getDChi2DParam (int ilocal) const
	Get derivative of chi squared w.r.t. parameter ilocal. More...

virtual double	getD2Chi2DParam2 (int ilocal, int jlocal) const
	Get second derivative of chi squared w.r.t. parameters ilocal1 and ilocal2. More...

virtual std::ostream &	printParams (std::ostream &os) const
	print the parameters and errors More...

virtual std::ostream &	printRhoValues (std::ostream &os) const
	print the correlation coefficients More...

virtual std::ostream &	print1stDerivatives (std::ostream &os) const
	print the 1st derivatives wrt metaSet 0 (E, px, py, pz) More...

virtual std::ostream &	print2ndDerivatives (std::ostream &os) const
	print the 2nd derivatives wrt metaSet 0 (E, px, py, pz) More...

void	invalidateCache () const
	invalidate any cached quantities

virtual void	addToGlobCov (double *glcov, int idim) const
	Add covariance matrix elements to global covariance matrix of size idim x idim. More...

virtual int	addToGlobalChi2DerVector (double *y, int idim) const
	Add derivatives of chi squared to global derivative vector. More...

virtual void	addToGlobalChi2DerVector (double *y, int idim, double lambda, double der[], int metaSet) const
	Add derivatives of momentum vector to global derivative vector. More...

virtual void	addToGlobalChi2DerMatrix (double *M, int idim) const
	Add 2nd derivatives of chi squared to global derivative matrix. More...

virtual void	addTo1stDerivatives (double M[], int idim, double der[], int kglobal, int metaSet) const

virtual void	addTo2ndDerivatives (double der2[], int idim, double factor[], int metaSet) const

virtual void	addTo2ndDerivatives (double M[], int idim, double lambda, double der[], int metaSet) const

virtual void	initCov ()

virtual double	getError2 (double der[], int metaset) const

Protected Types
enum	{ NPAR = 3 }
	Get chi squared from measured and fitted parameters.

Protected Member Functions
void	updateCache () const override

virtual bool	calculateCovInv () const
	Calculate the inverse of the covariance matrix.

Static Protected Member Functions
static bool	adjustEThetaPhi (const double &m, double &E, double &theta, double &phi)
	Adjust E, theta and phi such that E>=m, 0<=theta<=pi, -pi <= phi < pi; returns true if anything was changed.

Protected Attributes
double	ctheta

double	stheta

double	cphi

double	sphi

double	p2

double	p

double	pt

double	px

double	py

double	pz

double	dpdE

double	dptdE

double	dpxdE

double	dpydE

double	dpzdE

double	dpxdtheta

double	dpydtheta

double	chi2

double	mass
	mass of particle

FourVector	fourMomentum

double	paramCycl [BaseDefs::MAXPAR]

char *	name

double	par [BaseDefs::MAXPAR]
	fit parameters

double	mpar [BaseDefs::MAXPAR]
	measured parameters

bool	measured [BaseDefs::MAXPAR]
	measured flag

bool	fixed [BaseDefs::MAXPAR]
	fixed flag

int	globalParNum [BaseDefs::MAXPAR]
	global parameter number for each parameter

double	cov [BaseDefs::MAXPAR][BaseDefs::MAXPAR]
	local covariance matrix

double	covinv [BaseDefs::MAXPAR][BaseDefs::MAXPAR]
	inverse pf local covariance matrix

bool	covinvvalid
	flag for valid inverse covariance matrix

bool	cachevalid
	flag for valid cache

Static Protected Attributes
static const double	eps2 = 0.0001

Related Functions
(Note that these are not member functions.)
std::ostream &	operator<< (std::ostream &os, const BaseFitObject &bfo)
	Prints out a BaseFitObject, using its print method. More...

Detailed Description

Class for jets with (E, eta, phi) in kinematic fits.

Author: Jenny List, Benno List

Date: 2011/03/03 15:03:02

Author: blist

Changelog:

30.12.04 BL: addToGlobCov, getDChi2DParam, getDChi2DParam2, addToGlobalChi2DerMatrix moved up to ParticleFitObject, getParamName implemented

Definition at line 43 of file JetFitObject.h.

Constructor & Destructor Documentation

◆ JetFitObject()

JetFitObject ( const JetFitObject & rhs )

Copy constructor.

Parameters

rhs	right hand side

Definition at line 82 of file JetFitObject.cc.

       : ParticleFitObject(rhs), ctheta(0), stheta(0), cphi(0), sphi(0),
         p2(0), p(0), pt(0), px(0), py(0), pz(0), dpdE(0), dptdE(0),
         dpxdE(0), dpydE(0), dpzdE(0), dpxdtheta(0), dpydtheta(0), chi2(0)
     {
       JetFitObject::assign(rhs);
     }

Member Function Documentation

◆ addToGlobalChi2DerMatrix()

void addToGlobalChi2DerMatrix	(	double *	M,
		int	idim
	)		const

virtualinherited

Add 2nd derivatives of chi squared to global derivative matrix.

Parameters

M	Global derivative matrix
idim	First dimension of global derivative matrix

Definition at line 462 of file BaseFitObject.cc.

◆ addToGlobalChi2DerMatrixNum()

void addToGlobalChi2DerMatrixNum	(	double *	M,
		int	idim,
		double	eps
	)

virtualinherited

Add numerically determined derivatives of chi squared to global covariance matrix.

Parameters

M	Global covariance matrix
idim	First dimension of global covariance matrix
eps	Parameter variation

Definition at line 162 of file ParticleFitObject.cc.

◆ addToGlobalChi2DerVector() [1/2]

int addToGlobalChi2DerVector	(	double *	y,
		int	idim
	)		const

virtualinherited

Add derivatives of chi squared to global derivative vector.

Parameters

y	Vector of chi2 derivatives
idim	Vector size

Definition at line 482 of file BaseFitObject.cc.

◆ addToGlobalChi2DerVector() [2/2]

void addToGlobalChi2DerVector	(	double *	y,
		int	idim,
		double	lambda,
		double	der[],
		int	metaSet
	)		const

virtualinherited

Add derivatives of momentum vector to global derivative vector.

Parameters

y	Vector of chi2 derivatives
idim	Vector size
lambda	The lambda value
der	derivatives of constraint wrt intermediate variables (e.g. 4-vector with dg/dE, dg/dpx, dg/dpy, dg/dpz)
metaSet	which set of intermediate variables

Definition at line 498 of file BaseFitObject.cc.

◆ addToGlobalChi2DerVectorNum()

void addToGlobalChi2DerVectorNum	(	double *	y,
		int	idim,
		double	eps
	)

virtualinherited

Add numerically determined derivatives of chi squared to global derivative vector.

Parameters

y	Vector of chi2 derivatives
idim	Vector size
eps	Parameter variation

Definition at line 152 of file ParticleFitObject.cc.

◆ addToGlobCov()

void addToGlobCov	(	double *	glcov,
		int	idim
	)		const

virtualinherited

Add covariance matrix elements to global covariance matrix of size idim x idim.

Parameters

glcov	Global covariance matrix
idim	First dimension of global derivative matrix

Definition at line 217 of file BaseFitObject.cc.

◆ assign()

JetFitObject & assign ( const BaseFitObject & source )

overridevirtual

Assign from anther object, if of same type.

Parameters

source The source object

Reimplemented from ParticleFitObject.

Definition at line 103 of file JetFitObject.cc.

◆ fixParam()

bool fixParam	(	int	ilocal,
		bool	fix = `true`
	)

virtualinherited

Fix a parameter (fix=true), or release it (fix=false)

Parameters

ilocal	Local parameter number
fix	fix if true, release if false

Definition at line 352 of file BaseFitObject.cc.

◆ getCov()

double getCov	(	int	ilocal,
		int	jlocal
	)		const

overridevirtual

Get covariance between parameters ilocal and jlocal.

Parameters

ilocal	Local parameter number i
jlocal	Local parameter number j

Reimplemented from BaseFitObject.

Definition at line 238 of file JetFitObject.cc.

◆ getD2Chi2DParam2()

double getD2Chi2DParam2	(	int	ilocal,
		int	jlocal
	)		const

virtualinherited

Get second derivative of chi squared w.r.t. parameters ilocal1 and ilocal2.

Parameters

ilocal	Local parameter number i
jlocal	Local parameter number j

Definition at line 449 of file BaseFitObject.cc.

◆ getDChi2DParam()

double getDChi2DParam ( int ilocal ) const

virtualinherited

Get derivative of chi squared w.r.t. parameter ilocal.

Parameters

ilocal Local parameter number

Definition at line 435 of file BaseFitObject.cc.

◆ getDE()

double getDE ( int ilocal ) const

overridevirtual

Return d E / d par_ilocal (derivative of E w.r.t. local parameter ilocal)

Parameters

ilocal Local parameter number

Implements ParticleFitObject.

Definition at line 220 of file JetFitObject.cc.

◆ getDPx()

double getDPx ( int ilocal ) const

overridevirtual

Return d p_x / d par_ilocal (derivative of px w.r.t. local parameter ilocal)

Parameters

ilocal Local parameter number

Implements ParticleFitObject.

Definition at line 184 of file JetFitObject.cc.

◆ getDPy()

double getDPy ( int ilocal ) const

overridevirtual

Return d p_y / d par_ilocal (derivative of py w.r.t. local parameter ilocal)

Parameters

ilocal Local parameter number

Implements ParticleFitObject.

Definition at line 196 of file JetFitObject.cc.

◆ getDPz()

double getDPz ( int ilocal ) const

overridevirtual

Return d p_z / d par_ilocal (derivative of pz w.r.t. local parameter ilocal)

Parameters

ilocal Local parameter number

Implements ParticleFitObject.

Definition at line 208 of file JetFitObject.cc.

◆ getError()

double getError ( int ilocal ) const

overridevirtual

Get error of parameter ilocal.

Parameters

ilocal Local parameter number

Reimplemented from BaseFitObject.

Definition at line 231 of file JetFitObject.cc.

◆ getGlobalParNum()

int getGlobalParNum ( int ilocal ) const

virtualinherited

Get global parameter number of parameter ilocal.

Parameters

ilocal Local parameter number

Definition at line 365 of file BaseFitObject.cc.

◆ getMParam()

double getMParam ( int ilocal ) const

virtualinherited

Get measured value of parameter ilocal.

Parameters

ilocal Local parameter number

Definition at line 377 of file BaseFitObject.cc.

◆ getParam()

double getParam ( int ilocal ) const

virtualinherited

Get current value of parameter ilocal.

Parameters

ilocal Local parameter number

Definition at line 371 of file BaseFitObject.cc.

◆ getParamName()

const char * getParamName ( int ilocal ) const

overridevirtual

Get name of parameter ilocal.

Parameters

ilocal Local parameter number

Implements BaseFitObject.

Definition at line 116 of file JetFitObject.cc.

◆ getRho()

double getRho	(	int	ilocal,
		int	jlocal
	)		const

virtualinherited

Get correlation coefficient between parameters ilocal and jlocal.

Parameters

ilocal	Local parameter number i
jlocal	Local parameter number j

Definition at line 396 of file BaseFitObject.cc.

◆ isParamFixed()

bool isParamFixed ( int ilocal ) const

virtualinherited

Returns whether parameter is fixed.

Parameters

ilocal Local parameter number

Definition at line 408 of file BaseFitObject.cc.

◆ isParamMeasured()

bool isParamMeasured ( int ilocal ) const

virtualinherited

Get measured flag for parameter ilocal.

Parameters

ilocal Local parameter number

Definition at line 402 of file BaseFitObject.cc.

◆ num1stDerivative()

double num1stDerivative	(	int	ilocal,
		double	eps
	)

inherited

Evaluates numerically the 1st derivative of chi2 w.r.t. a parameter.

Parameters

ilocal	Local parameter number
eps	variation of local parameter

Definition at line 230 of file ParticleFitObject.cc.

◆ num2ndDerivative()

double num2ndDerivative	(	int	ilocal1,
		double	eps1,
		int	ilocal2,
		double	eps2
	)

inherited

Evaluates numerically the 2nd derivative of chi2 w.r.t. 2 parameters.

Parameters

ilocal1	1st local parameter number
eps1	variation of 1st local parameter
ilocal2	1st local parameter number
eps2	variation of 2nd local parameter

Definition at line 242 of file ParticleFitObject.cc.

◆ operator=()

JetFitObject & operator= ( const JetFitObject & rhs )

Assignment.

Parameters

rhs	right hand side

Definition at line 90 of file JetFitObject.cc.

◆ print()

std::ostream & print ( std::ostream & os ) const

overridevirtualinherited

print object to ostream

Parameters

os	The output stream

Implements BaseFitObject.

Definition at line 140 of file ParticleFitObject.cc.

◆ print1stDerivatives()

std::ostream & print1stDerivatives ( std::ostream & os ) const

virtualinherited

print the 1st derivatives wrt metaSet 0 (E, px, py, pz)

Parameters

os	The output stream

Definition at line 164 of file BaseFitObject.cc.

◆ print2ndDerivatives()

std::ostream & print2ndDerivatives ( std::ostream & os ) const

virtualinherited

print the 2nd derivatives wrt metaSet 0 (E, px, py, pz)

Parameters

os	The output stream

Definition at line 178 of file BaseFitObject.cc.

◆ print4Vector()

std::ostream & print4Vector ( std::ostream & os ) const

virtualinherited

print the four-momentum (E, px, py, pz)

Parameters

os	The output stream

Definition at line 94 of file ParticleFitObject.cc.

◆ printParams()

std::ostream & printParams ( std::ostream & os ) const

virtualinherited

print the parameters and errors

Parameters

os	The output stream

Definition at line 137 of file BaseFitObject.cc.

◆ printRhoValues()

std::ostream & printRhoValues ( std::ostream & os ) const

virtualinherited

print the correlation coefficients

Parameters

os	The output stream

Definition at line 151 of file BaseFitObject.cc.

◆ releaseParam()

virtual bool releaseParam ( int ilocal )

inlinevirtualinherited

Release a parameter.

Parameters

ilocal Local parameter number

Definition at line 157 of file BaseFitObject.h.

◆ setCov()

bool setCov	(	int	ilocal,
		int	jlocal,
		double	cov_
	)

virtualinherited

Set covariance of parameters ilocal and jlocal; return: success.

Parameters

ilocal	Local parameter number
jlocal	Local parameter number
cov_	New error value

Definition at line 340 of file BaseFitObject.cc.

◆ setError()

bool setError	(	int	ilocal,
		double	err_
	)

virtualinherited

Set error of parameter ilocal; return: success.

Parameters

ilocal	Local parameter number
err_	New error value

Definition at line 330 of file BaseFitObject.cc.

◆ setGlobalParNum()

bool setGlobalParNum	(	int	ilocal,
		int	iglobal
	)

virtualinherited

Set number of parameter ilocal in global list return true signals OK.

Parameters

ilocal	Local parameter number
iglobal	New global parameter number

Definition at line 358 of file BaseFitObject.cc.

◆ setMParam()

bool setMParam	(	int	ilocal,
		double	mpar_
	)

virtualinherited

Set measured value of parameter ilocal; return: success.

Parameters

ilocal	Local parameter number
mpar_	New measured parameter value

Definition at line 320 of file BaseFitObject.cc.

◆ setParam() [1/2]

bool setParam	(	int	ilocal,
		double	par_
	)

virtualinherited

Set value of parameter ilocal; return: significant change.

Parameters

ilocal	Local parameter number
par_	New parameter value

Definition at line 309 of file BaseFitObject.cc.

◆ setParam() [2/2]

bool setParam	(	int	ilocal,
		double	par_,
		bool	measured_,
		bool	fixed_ = `false`
	)

virtualinherited

Set value and measured flag of parameter i; return: significant change.

Parameters

ilocal	Local parameter number
par_	New parameter value
measured_	New "measured" flag
fixed_	New "fixed" flag

Definition at line 299 of file BaseFitObject.cc.

◆ updateParams()

bool updateParams	(	double	p[],
		int	idim
	)

overridevirtual

Read values from global vector, readjust vector; return: significant change.

Parameters

p	The parameter vector
idim	Length of the vector

Reimplemented from BaseFitObject.

Definition at line 127 of file JetFitObject.cc.

Friends And Related Function Documentation

◆ operator<<()

std::ostream & operator<<	(	std::ostream &	os,
		const BaseFitObject &	bfo
	)

Parameters

os	The output stream
bfo	The object to print

Definition at line 341 of file BaseFitObject.h.

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

analysis/OrcaKinFit/include/JetFitObject.h
analysis/OrcaKinFit/src/JetFitObject.cc

Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Static Protected Attributes

Related Functions

Detailed Description

Constructor & Destructor Documentation

◆ JetFitObject()

Member Function Documentation

◆ addToGlobalChi2DerMatrix()

◆ addToGlobalChi2DerMatrixNum()

◆ addToGlobalChi2DerVector() [1/2]

◆ addToGlobalChi2DerVector() [2/2]

◆ addToGlobalChi2DerVectorNum()

◆ addToGlobCov()

◆ assign()

◆ fixParam()

◆ getCov()

◆ getD2Chi2DParam2()

◆ getDChi2DParam()

◆ getDE()

◆ getDPx()

◆ getDPy()

◆ getDPz()

◆ getError()

◆ getGlobalParNum()

◆ getMParam()

◆ getParam()

◆ getParamName()

◆ getRho()

◆ isParamFixed()

◆ isParamMeasured()

◆ num1stDerivative()

◆ num2ndDerivative()

◆ operator=()

◆ print()

◆ print1stDerivatives()

◆ print2ndDerivatives()

◆ print4Vector()

◆ printParams()

◆ printRhoValues()

◆ releaseParam()

◆ setCov()

◆ setError()

◆ setGlobalParNum()

◆ setMParam()

◆ setParam() [1/2]

◆ setParam() [2/2]

◆ updateParams()

Friends And Related Function Documentation

◆ operator<<()