Class ISRPhotonFitObject Documention: arXiv:1006.0436 [hep-ex]. More...

#include <ISRPhotonFitObject.h>

Inheritance diagram for ISRPhotonFitObject:

Public Member Functions
	ISRPhotonFitObject (double px, double py, double pz, double b_, double PzMaxB_, double PzMinB_=0.)

	ISRPhotonFitObject (const ISRPhotonFitObject &rhs)
	photon spectrum parametrization (see above) More...

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

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

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

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

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

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

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

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

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

virtual double	getFirstDerivative_Meta_Local (int iMeta, int ilocal, int metaSet) const

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

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

Public Member Functions inherited from ParticleFitObject
	ParticleFitObject ()
	Default constructor.

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

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

virtual	~ParticleFitObject ()
	Virtual destructor.

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

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
	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
	Get chi squared from measured and fitted parameters.

Public Member Functions inherited from BaseFitObject
	BaseFitObject ()
	Default constructor.

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

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

virtual	~BaseFitObject ()
	Virtual destructor.

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.

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

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

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

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

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

Protected Member Functions
virtual double	PgFromPz (double pz)

void	updateCache () const

Protected Member Functions inherited from BaseFitObject
virtual bool	calculateCovInv () const
	Calculate the inverse of the covariance matrix.

Protected Attributes
bool	cachevalid

double	pt2

double	p2

double	p

double	pz

double	dpx0

double	dpy0

double	dpz0

double	dE0

double	dpx1

double	dpy1

double	dpz1

double	dE1

double	dpx2

double	dpy2

double	dpz2

double	dE2

double	d2pz22

double	d2E22

double	chi2

double	b

double	PzMinB

double	PzMaxB

double	dp2zFact

Protected Attributes inherited from ParticleFitObject
double	mass
	mass of particle

FourVector	fourMomentum

double	paramCycl [BaseDefs::MAXPAR]

Protected Attributes inherited from BaseFitObject
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 paramter 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

Additional Inherited Members
Static Protected Attributes inherited from BaseFitObject
static const double	eps2 = 0.0001

Related Functions inherited from BaseFitObject
std::ostream &	operator<< (std::ostream &os, const BaseFitObject &bfo)
	Prints out a BaseFitObject, using its print method. More...

Detailed Description

Class ISRPhotonFitObject Documention: arXiv:1006.0436 [hep-ex].

Class for ISR photons with (p_x,p_y (both fix), p_z (free)) in kinematic fits p_z is internally replaced by a parameter p_g

This class assumes a photon p_z distribution according to dN/d|p_z| = c*|p_z|^(b-1), where the total number of photons should be given by N = {PzMin}^{PzMax} dN/d|p_z| d|p_z| The parameters b, PzMaxB:=PzMax^b and PzMinB:=PzMin^b are required to describe the photon spectrum Only |p_z| values in [PzMin,PzMax[ can be used as start values (assertion in PgFromPz(...)) and will occur in the fit Recommended start value is the missing p_z (fitter will always find a minimum around p_z=0)

Author: Moritz Beckmann

Date:: 2011/03/16 16:33:24

Author:: mbeckman

Changelog:

CVS Log messages:

Log:
ISRPhotonFitObject.h,v
Revision 1.2 2011/03/16 16:33:24 mbeckman
Compatibility fixes with ILCSoft svn
Revision 1.1 2010/06/11 20:32:51 mbeckman
Renamed PhotonFitObjects, cleaned them up for usage
Revision 1.6 2009/03/26 08:47:16 mbeckman
Bug fix (measured p = 0 instead of start value), extended documentation
Revision 1.5 2009/02/23 12:03:18 mbeckman
- PhotonFitObject: bug fix (1/0), removed dispensable variables
- PhotonFitObjectPxyg: bug fixes (1/0, order of computing variables), modified parametrization
Revision 1.4 2009/02/18 11:53:42 mbeckman
documentation, debug output

Constructor & Destructor Documentation

ISRPhotonFitObject::ISRPhotonFitObject	(	double	px,
		double	py,
		double	pz,
		double	b_,
		double	PzMaxB_,
		double	PzMinB_ = `0.`
	)

Parameters

b_	initial values for photon (p_x,p_y fix)

References BaseFitObject::invalidateCache(), BaseFitObject::setError(), ParticleFitObject::setMass(), BaseFitObject::setMParam(), and BaseFitObject::setParam().

Referenced by copy().

ISRPhotonFitObject::ISRPhotonFitObject ( const ISRPhotonFitObject & rhs )

photon spectrum parametrization (see above)

Copy constructor

Parameters

rhs	right hand side

References assign().

Member Function Documentation

ISRPhotonFitObject & ISRPhotonFitObject::assign ( const BaseFitObject & source )

virtual

Assign from anther object, if of same type.

Parameters

source The source object

Reimplemented from ParticleFitObject.

References ParticleFitObject::assign().

Referenced by ISRPhotonFitObject(), and operator=().

const char * ISRPhotonFitObject::getParamName ( int ilocal ) const

virtual

Get name of parameter ilocal.

Parameters

ilocal Local parameter number

Reimplemented from BaseFitObject.

ISRPhotonFitObject & ISRPhotonFitObject::operator= ( const ISRPhotonFitObject & rhs )

Assignment.

Parameters

rhs	right hand side

References assign().

bool ISRPhotonFitObject::updateParams	(	double	p[],
		int	idim
	)

virtual

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

Parameters

p	The parameter vector
idim	Length of the vector

Reimplemented from BaseFitObject.

References BaseFitObject::cov, BaseFitObject::getGlobalParNum(), BaseFitObject::invalidateCache(), and BaseFitObject::par.

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

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation