Implements constraint 0 = mass1 - mass2 - m. More...

#include <SoftGaussMassConstraint.h>

Inheritance diagram for SoftGaussMassConstraint:

Public Member Functions
	SoftGaussMassConstraint (double sigma_, double mass_=0.)
	Constructor. More...

virtual	~SoftGaussMassConstraint ()
	Virtual destructor.

virtual double	getValue () const
	Returns the value of the constraint function.

virtual void	getDerivatives (int idim, double der[]) const
	Get first order derivatives. More...

virtual double	getMass (int flag=1)
	Get the actual invariant mass of the fit objects with a given flag. More...

virtual void	setMass (double mass_)
	Sets the target mass of the constraint. More...

Public Member Functions inherited from SoftGaussParticleConstraint
	SoftGaussParticleConstraint (double sigma_)
	Creates an empty SoftGaussParticleConstraint object. More...

virtual	~SoftGaussParticleConstraint ()
	Virtual destructor.

virtual void	setFOList (std::vector< ParticleFitObject * > *fitobjects_)
	Adds several ParticleFitObject objects to the list. More...

virtual void	addToFOList (ParticleFitObject &fitobject, int flag=1)
	Adds one ParticleFitObject objects to the list.

virtual void	resetFOList ()
	Resests ParticleFitObject list.

virtual double	getChi2 () const
	Returns the chi2.

virtual double	getError () const
	Returns the error on the value of the constraint.

virtual double	getSigma () const
	Returns the sigma.

virtual double	setSigma (double sigma_)
	Sets the sigma. More...

virtual void	add2ndDerivativesToMatrix (double *M, int idim) const
	Adds second order derivatives to global covariance matrix M. More...

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

virtual void	invalidateCache () const
	Invalidates any cached values for the next event.

void	test1stDerivatives ()

void	test2ndDerivatives ()

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

double	num2ndDerivative (int ifo1, int ilocal1, double eps1, int ifo2, int ilocal2, double eps2)
	Evaluates numerically the 2nd derivative w.r.t. 2 parameters. More...

int	getVarBasis () const

Public Member Functions inherited from BaseSoftConstraint
virtual	~BaseSoftConstraint ()
	Virtual destructor.

Public Member Functions inherited from BaseConstraint
	BaseConstraint ()
	Creates an empty BaseConstraint object.

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

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

virtual	~BaseConstraint ()
	Virtual destructor.

virtual const char *	getName () const
	Returns the name of the constraint.

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

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

Protected Member Functions
virtual bool	secondDerivatives (int i, int j, double *derivatives) const
	Second derivatives with respect to the 4-vectors of Fit objects i and j; result false if all derivatives are zero. More...

virtual bool	firstDerivatives (int i, double *derivatives) const
	First derivatives with respect to the 4-vector of Fit objects i; result false if all derivatives are zero. More...

Protected Attributes
double	mass
	The mass difference between object sets 1 and 2.

Protected Attributes inherited from SoftGaussParticleConstraint
FitObjectContainer	fitobjects
	The FitObjectContainer.

std::vector< double >	derivatives
	The derivatives.

std::vector< int >	flags
	The flags can be used to divide the FitObjectContainer into several subsets used for example to implement an equal mass constraint (see MassConstraint). More...

double	sigma
	The sigma of the Gaussian.

Protected Attributes inherited from BaseSoftConstraint
char *	name

Protected Attributes inherited from BaseConstraint
char *	name

Additional Inherited Members
Protected Types inherited from SoftGaussParticleConstraint
enum	{ VAR_BASIS =BaseDefs::VARBASIS_EPXYZ }

typedef std::vector < ParticleFitObject * >	FitObjectContainer
	Vector of pointers to ParticleFitObjects.

typedef FitObjectContainer::iterator	FitObjectIterator
	Iterator through vector of pointers to ParticleFitObjects.

typedef FitObjectContainer::const_iterator	ConstFitObjectIterator
	Constant iterator through vector of pointers to ParticleFitObjects.

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

Detailed Description

Implements constraint 0 = mass1 - mass2 - m.

This class implements different mass constraints:

the invariant mass of several objects should be m
the difference of the invariant masses between two sets of objects should be m (normally m=0 in this case).

Author: Jenny List, Benno List Last update:

Date:: 2008/02/12 16:43:26

by:

Author:: blist

Constructor & Destructor Documentation

SoftGaussMassConstraint::SoftGaussMassConstraint	(	double	sigma_,
		double	mass_ = `0.`
	)

Constructor.

Parameters

sigma_	The sigma value
mass_	The mass difference between object sets 1 and 2

Member Function Documentation

bool SoftGaussMassConstraint::firstDerivatives	(	int	i,
		double *	derivatives
	)		const

protectedvirtual

First derivatives with respect to the 4-vector of Fit objects i; result false if all derivatives are zero.

Parameters

i	number of 1st FitObject
derivatives	The result 4-vector

Implements SoftGaussParticleConstraint.

References SoftGaussParticleConstraint::fitobjects, SoftGaussParticleConstraint::flags, ParticleFitObject::getE(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().

void SoftGaussMassConstraint::getDerivatives	(	int	idim,
		double	der[]
	)		const

virtual

Get first order derivatives.

Call this with a predefined array "der" with the necessary number of entries!

Parameters

idim	First dimension of the array
der	Array of derivatives, at least idim x idim

Implements SoftGaussParticleConstraint.

References SoftGaussParticleConstraint::fitobjects, and SoftGaussParticleConstraint::flags.

double SoftGaussMassConstraint::getMass ( int flag = 1 )

virtual

Get the actual invariant mass of the fit objects with a given flag.

Parameters

flag The flag

References SoftGaussParticleConstraint::fitobjects, and SoftGaussParticleConstraint::flags.

bool SoftGaussMassConstraint::secondDerivatives	(	int	i,
		int	j,
		double *	derivatives
	)		const

protectedvirtual

Second derivatives with respect to the 4-vectors of Fit objects i and j; result false if all derivatives are zero.

Parameters

i	number of 1st FitObject
j	number of 2nd FitObject
derivatives	The result 4x4 matrix

Implements SoftGaussParticleConstraint.

References SoftGaussParticleConstraint::fitobjects, SoftGaussParticleConstraint::flags, ParticleFitObject::getE(), ParticleFitObject::getPx(), ParticleFitObject::getPy(), and ParticleFitObject::getPz().

void SoftGaussMassConstraint::setMass ( double mass_ )

virtual

Sets the target mass of the constraint.

Parameters

mass_ The new mass

References mass.

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

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation