#include <VertexCompositeCandidate.h>

Inheritance diagram for reco::VertexCompositeCandidate:

Public Member Functions
virtual VertexCompositeCandidate *	clone () const
	returns a clone of the candidate
virtual void	fillVertexCovariance (CovarianceMatrix &v) const
	fill SMatrix
void	setChi2AndNdof (double chi2, double ndof)
	set chi2 and ndof
void	setCovariance (const CovarianceMatrix &m)
	set covariance matrix
virtual double	vertexChi2 () const
	chi-squares
	VertexCompositeCandidate (Charge q, const LorentzVector &p4, const Point &vtx, int pdgId=0, int status=0, bool integerCharge=true)
	constructor from values
	VertexCompositeCandidate (const Candidate &p)
	constructor from values
	VertexCompositeCandidate (const CompositeCandidate &p)
	constructor from values
	VertexCompositeCandidate ()
	VertexCompositeCandidate (Charge q, const LorentzVector &p4, const Point &vtx, const CovarianceMatrix &err, double chi2, double ndof, int pdgId=0, int status=0, bool integerCharge=true)
	constructor from values
virtual double	vertexCovariance (int i, int j) const
	(i, j)-th element of error matrix, i, j = 0, ... 2
virtual double	vertexNdof () const
virtual double	vertexNormalizedChi2 () const
	chi-squared divided by n.d.o.f.
virtual	~VertexCompositeCandidate ()
	destructor
Private Member Functions
index	idx (index i, index j) const
	position index
Private Attributes
Double32_t	chi2_
	chi-sqared
Double32_t	covariance_ [size]
	covariance matrix (3x3) as vector
Double32_t	ndof_
	number of degrees of freedom

Detailed Description

A composite Candidate with error matrix and other vertex fix information.

Author:: Luca Lista, INFN

Version:

Id:: VertexCompositeCandidate.h,v 1.9 2009/11/02 21:46:53 srappocc Exp

Definition at line 17 of file VertexCompositeCandidate.h.

Constructor & Destructor Documentation

reco::VertexCompositeCandidate::VertexCompositeCandidate ( ) [inline]

Definition at line 19 of file VertexCompositeCandidate.h.

Referenced by clone().

: CompositeCandidate() { }

reco::VertexCompositeCandidate::VertexCompositeCandidate	(	Charge	q,
		const LorentzVector &	p4,
		const Point &	vtx,
		int	pdgId = `0`,
		int	status = `0`,
		bool	integerCharge = `true`
	)		`[inline]`

constructor from values

Definition at line 21 of file VertexCompositeCandidate.h.

                                                                                       :
      CompositeCandidate(q, p4, vtx, pdgId, status, integerCharge),
      chi2_(0), ndof_(0) { }

VertexCompositeCandidate::VertexCompositeCandidate	(	Charge	q,
		const LorentzVector &	p4,
		const Point &	vtx,
		const CovarianceMatrix &	err,
		double	chi2,
		double	ndof,
		int	pdgId = `0`,
		int	status = `0`,
		bool	integerCharge = `true`
	)

constructor from values

Definition at line 6 of file VertexCompositeCandidate.cc.

References setCovariance().

                                                                                              :
  CompositeCandidate(q, p4, vtx, pdgId, status, integerCharge),
  chi2_(chi2), ndof_(ndof) { 
  setCovariance(err);
}

reco::VertexCompositeCandidate::VertexCompositeCandidate ( const Candidate & p ) [inline, explicit]

constructor from values

Definition at line 30 of file VertexCompositeCandidate.h.

                                                           :
      CompositeCandidate(p), chi2_(0), ndof_(0) { }

reco::VertexCompositeCandidate::VertexCompositeCandidate ( const CompositeCandidate & p ) [inline, explicit]

constructor from values

Definition at line 33 of file VertexCompositeCandidate.h.

                                                                    :
      CompositeCandidate(p), chi2_(0), ndof_(0) { }

VertexCompositeCandidate::~VertexCompositeCandidate ( ) [virtual]

destructor

Definition at line 14 of file VertexCompositeCandidate.cc.

{ }

Member Function Documentation

VertexCompositeCandidate * VertexCompositeCandidate::clone ( void ) const [virtual]

returns a clone of the candidate

Reimplemented from reco::CompositeCandidate.

Definition at line 16 of file VertexCompositeCandidate.cc.

References VertexCompositeCandidate().

                                                                 { 
  return new VertexCompositeCandidate(*this); 
}

void VertexCompositeCandidate::fillVertexCovariance ( CovarianceMatrix & v ) const [virtual]

fill SMatrix

Reimplemented from reco::LeafCandidate.

Definition at line 20 of file VertexCompositeCandidate.cc.

References covariance_, reco::Candidate::dimension, i, idx(), and j.

                                                                               {
  index idx = 0;
  for(index i = 0; i < dimension; ++i) 
    for(index j = 0; j <= i; ++ j)
      err(i, j) = covariance_[idx++];
}

index reco::VertexCompositeCandidate::idx	(	index	i,
		index	j
	)		const `[inline, private]`

position index

Definition at line 71 of file VertexCompositeCandidate.h.

References a, b, and j.

Referenced by fillVertexCovariance(), setCovariance(), and vertexCovariance().

                                      {
      int a = (i <= j ? i : j), b = (i <= j ? j : i);
      return b * (b + 1)/2 + a;
    }

void reco::VertexCompositeCandidate::setChi2AndNdof	(	double	chi2,
		double	ndof
	)		`[inline]`

set chi2 and ndof

Definition at line 58 of file VertexCompositeCandidate.h.

References ExpressReco_HICollisions_FallBack::chi2, chi2_, and ndof_.

Referenced by CandCommonVertexFitterBase::set(), CandKinematicVertexFitter::set(), and PFCandCommonVertexFitterBase::set().

                                                  {
      chi2_ = chi2; ndof_ = ndof;
    }

void VertexCompositeCandidate::setCovariance ( const CovarianceMatrix & m )

set covariance matrix

Definition at line 27 of file VertexCompositeCandidate.cc.

References covariance_, reco::Candidate::dimension, i, idx(), and j.

Referenced by CandCommonVertexFitterBase::set(), CandKinematicVertexFitter::set(), PFCandCommonVertexFitterBase::set(), and VertexCompositeCandidate().

                                                                         {
  index idx = 0;
  for(index i = 0; i < dimension; ++i) 
    for(index j = 0; j <= i; ++j)
      covariance_[idx++] = err(i, j);
}

virtual double reco::VertexCompositeCandidate::vertexChi2 ( ) const [inline, virtual]

chi-squares

Reimplemented from reco::LeafCandidate.

Definition at line 40 of file VertexCompositeCandidate.h.

References chi2_.

{ return chi2_; }

virtual double reco::VertexCompositeCandidate::vertexCovariance	(	int	i,
		int	j
	)		const `[inline, virtual]`

(i, j)-th element of error matrix, i, j = 0, ... 2

Reimplemented from reco::LeafCandidate.

Definition at line 51 of file VertexCompositeCandidate.h.

References covariance_, and idx().

                                                        { 
      return covariance_[idx(i, j)]; 
    }

virtual double reco::VertexCompositeCandidate::vertexNdof ( ) const [inline, virtual]

Number of degrees of freedom Meant to be Double32_t for soft-assignment fitters: tracks may contribute to the vertex with fractional weights. The ndof is then = to the sum of the track weights. see e.g. CMS NOTE-2006/032, CMS NOTE-2004/002

Reimplemented from reco::LeafCandidate.

Definition at line 47 of file VertexCompositeCandidate.h.

References ndof_.