---

TFitConstraintMGaus Class Reference

#include <PhysicsTools/KinFitter/interface/TFitConstraintMGaus.h>

Inheritance diagram for TFitConstraintMGaus:

List of all members.

Public Member Functions
virtual Double_t	getCurrentValue ()
virtual TMatrixD *	getDerivativeAlpha ()
virtual TString	getInfoString ()
virtual Double_t	getInitValue ()
virtual void	print ()
void	setMassConstraint (Double_t Mass, Double_t Width)
	TFitConstraintMGaus (const TString &name, const TString &title, vector< TAbsFitParticle * > *ParList1, vector< TAbsFitParticle * > *ParList2, Double_t Mass=0, Double_t Width=0)
	TFitConstraintMGaus (vector< TAbsFitParticle * > *ParList1, vector< TAbsFitParticle * > *ParList2, Double_t Mass=0, Double_t Width=0)
	TFitConstraintMGaus ()
virtual	~TFitConstraintMGaus ()
Protected Member Functions
void	init ()
Protected Attributes
Double_t	_width

---

Detailed Description

Definition at line 13 of file TFitConstraintMGaus.h.

---

Constructor & Destructor Documentation

TFitConstraintMGaus::TFitConstraintMGaus

(

)

TFitConstraintMGaus::TFitConstraintMGaus	(	vector< TAbsFitParticle * > *	ParList1,
		vector< TAbsFitParticle * > *	ParList2,
		Double_t	Mass = 0,
		Double_t	Width = 0
	)

Definition at line 34 of file TFitConstraintMGaus.cc.

References init(), and setMassConstraint().

  : TFitConstraintM(ParList1, ParList2, Mass ) 
{

  init();
  setMassConstraint( Mass, Width );

}

TFitConstraintMGaus::TFitConstraintMGaus	(	const TString &	name,
		const TString &	title,
		vector< TAbsFitParticle * > *	ParList1,
		vector< TAbsFitParticle * > *	ParList2,
		Double_t	Mass = 0,
		Double_t	Width = 0
	)

Definition at line 46 of file TFitConstraintMGaus.cc.

References init(), and setMassConstraint().

  : TFitConstraintM( name, title, ParList1, ParList2, Mass )
{

  init();
  setMassConstraint( Mass, Width );

}

TFitConstraintMGaus::~TFitConstraintMGaus

(

)

[virtual]

Definition at line 74 of file TFitConstraintMGaus.cc.

                                          {

}

---

Member Function Documentation

Double_t TFitConstraintMGaus::getCurrentValue

(

)

[virtual]

Reimplemented from TFitConstraintM.

Definition at line 103 of file TFitConstraintMGaus.cc.

References TAbsFitConstraint::_parameters, TFitConstraintM::_ParList1, TFitConstraintM::_ParList2, TFitConstraintM::_TheMassConstraint, and TFitConstraintM::CalcMass().

Referenced by getInfoString().

                                              {
  // Get value of constraint after the fit

  Double_t CurrentValue =
    CalcMass(&_ParList1,false) - 
    CalcMass(&_ParList2,false) - 
    _parameters(0,0)*_TheMassConstraint;

  return CurrentValue;

}

TMatrixD * TFitConstraintMGaus::getDerivativeAlpha

(

)

[virtual]

Reimplemented from TAbsFitConstraint.

Definition at line 115 of file TFitConstraintMGaus.cc.

References TFitConstraintM::_TheMassConstraint.

                                                  { 
  // Calculate dF/dAlpha = -1 * M

  TMatrixD* DerivativeMatrix = new TMatrixD(1,1);
  DerivativeMatrix->Zero();

  (*DerivativeMatrix)(0,0) = -1. * _TheMassConstraint;

  return DerivativeMatrix;

}

TString TFitConstraintMGaus::getInfoString

(

)

[virtual]

Reimplemented from TFitConstraintM.

Definition at line 127 of file TFitConstraintMGaus.cc.

References TAbsFitConstraint::_iniparameters, TAbsFitConstraint::_parameters, TFitConstraintM::_TheMassConstraint, _width, lat::endl(), getCurrentValue(), getInitValue(), and info.

Referenced by print().

                                           {
  // Collect information to be used for printout

  stringstream info;
  info << scientific << setprecision(6);

  info << "__________________________" << endl
       << endl;
  info << "OBJ: " << IsA()->GetName() << "\t" << GetName() << "\t" << GetTitle() << endl;

  info << "initial value: " << getInitValue() << endl;
  info << "current value: " << getCurrentValue() << endl;
  info << "mean mass: " << _TheMassConstraint << endl;
  info << "width: " << _width << endl;
  info << "initial mass: " << _iniparameters(0,0)*_TheMassConstraint  << endl;
  info << "current mass: " << _parameters(0,0)*_TheMassConstraint  << endl;

  return info.str();

}

Double_t TFitConstraintMGaus::getInitValue

(

)

[virtual]

Reimplemented from TFitConstraintM.

Definition at line 91 of file TFitConstraintMGaus.cc.

References TAbsFitConstraint::_iniparameters, TFitConstraintM::_ParList1, TFitConstraintM::_ParList2, TFitConstraintM::_TheMassConstraint, and TFitConstraintM::CalcMass().

Referenced by getInfoString().

                                           {
  // Get initial value of constraint (before the fit)

  Double_t InitValue = 
    CalcMass( &_ParList1, true ) - 
    CalcMass( &_ParList2, true ) - 
    _iniparameters(0,0) * _TheMassConstraint;

  return InitValue;

}

void TFitConstraintMGaus::init

(

void

)

[protected]

Definition at line 60 of file TFitConstraintMGaus.cc.

References TAbsFitConstraint::_iniparameters, TAbsFitConstraint::_nPar, and TAbsFitConstraint::_parameters.

Referenced by TFitConstraintMGaus().

                          {

  _nPar = 1;
  _iniparameters.ResizeTo(1,1);
  _iniparameters(0,0) = 1.;
  _parameters.ResizeTo(1,1);
  _parameters = _iniparameters;

}

void TFitConstraintMGaus::print

(

void

)

[virtual]

Reimplemented from TFitConstraintM.

Definition at line 148 of file TFitConstraintMGaus.cc.

References getInfoString().

                                {
  // Print constraint contents

  edm::LogVerbatim("KinFitter") << this->getInfoString();

}

void TFitConstraintMGaus::setMassConstraint	(	Double_t	Mass,
		Double_t	Width
	)

Definition at line 82 of file TFitConstraintMGaus.cc.

References TAbsFitConstraint::_covMatrix, TFitConstraintM::_TheMassConstraint, _width, and TAbsFitConstraint::setCovMatrix().

Referenced by TFitConstraintMGaus().

                                                                         { 
  
  _TheMassConstraint = Mass;
  _width = Width;
  setCovMatrix( 0 );
  _covMatrix(0,0) = (Width*Width) / (Mass * Mass);

}

---

Member Data Documentation

Double_t TFitConstraintMGaus::_width [protected]

Definition at line 39 of file TFitConstraintMGaus.h.

Referenced by getInfoString(), and setMassConstraint().

---

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

• PhysicsTools/KinFitter/interface/TFitConstraintMGaus.h
• PhysicsTools/KinFitter/src/TFitConstraintMGaus.cc

---