#include <MultipleAlgoIterator.h>

Inheritance diagram for MultipleAlgoIterator:

Public Member Functions
virtual void	calculatePedestal (std::vector< fastjet::PseudoJet > const &coll)

double	getEt (const reco::CandidatePtr &in) const

double	getEta (const reco::CandidatePtr &in) const

	MultipleAlgoIterator (const edm::ParameterSet &iConfig)

virtual void	offsetCorrectJets ()

void	rescaleRMS (double s)

virtual void	subtractPedestal (std::vector< fastjet::PseudoJet > &coll)

	~MultipleAlgoIterator ()

Public Member Functions inherited from PileUpSubtractor
virtual void	calculateOrphanInput (std::vector< fastjet::PseudoJet > &orphanInput)

virtual double	getMeanAtTower (const reco::CandidatePtr &in) const

virtual double	getPileUpAtTower (const reco::CandidatePtr &in) const

virtual double	getPileUpEnergy (int ijet) const

virtual double	getSigmaAtTower (const reco::CandidatePtr &in) const

int	ieta (const reco::CandidatePtr &in) const

int	iphi (const reco::CandidatePtr &in) const

	PileUpSubtractor (const edm::ParameterSet &iConfig)

virtual void	reset (std::vector< edm::Ptr< reco::Candidate > > &input, std::vector< fastjet::PseudoJet > &towers, std::vector< fastjet::PseudoJet > &output)

virtual void	setAlgorithm (ClusterSequencePtr &algorithm)

virtual void	setupGeometryMap (edm::Event &iEvent, const edm::EventSetup &iSetup)

	~PileUpSubtractor ()

Public Attributes
bool	dropZeroTowers_

bool	sumRecHits_

Additional Inherited Members
Public Types inherited from PileUpSubtractor
typedef boost::shared_ptr < fastjet::ActiveAreaSpec >	ActiveAreaSpecPtr

typedef boost::shared_ptr < fastjet::ClusterSequence >	ClusterSequencePtr

typedef boost::shared_ptr < fastjet::RangeDefinition >	RangeDefPtr

Protected Attributes inherited from PileUpSubtractor
std::vector< HcalDetId >	allgeomid_

bool	doAreaFastjet_

bool	doRhoFastjet_

std::map< int, double >	emean_

std::map< int, double >	esigma_

ActiveAreaSpecPtr	fjActiveArea_

ClusterSequencePtr	fjClusterSeq_

std::vector< fastjet::PseudoJet > *	fjInputs_

std::vector< fastjet::PseudoJet > *	fjJets_

std::vector< fastjet::PseudoJet >	fjOriginalInputs_

RangeDefPtr	fjRangeDef_

CaloGeometry const *	geo_

std::map< int, int >	geomtowers_

int	ietamax_

int	ietamin_

std::vector< edm::Ptr < reco::Candidate > > *	inputs_

std::vector< double >	jetOffset_

double	jetPtMin_

double	nSigmaPU_

std::map< int, int >	ntowersWithJets_

double	radiusPU_

bool	reRunAlgo_

Detailed Description

Definition at line 6 of file MultipleAlgoIterator.h.

Constructor & Destructor Documentation

MultipleAlgoIterator::MultipleAlgoIterator ( const edm::ParameterSet & iConfig )

inline

Definition at line 8 of file MultipleAlgoIterator.h.

                                                         : PileUpSubtractor(iConfig),
      sumRecHits_(iConfig.getParameter<bool>("sumRecHits")),
      dropZeroTowers_(iConfig.getUntrackedParameter<bool>("dropZeroTowers",true))
        {;}

MultipleAlgoIterator::~MultipleAlgoIterator ( )

inline

Definition at line 21 of file MultipleAlgoIterator.h.

21 {;}

Member Function Documentation

void MultipleAlgoIterator::calculatePedestal ( std::vector< fastjet::PseudoJet > const & coll )

virtual

Reimplemented from PileUpSubtractor.

Definition at line 112 of file MultipleAlgoIterator.cc.

References gt, i, LogDebug, nt, edm::second(), and mathSSE::sqrt().

 {
    LogDebug("PileUpSubtractor")<<"The subtractor calculating pedestals...\n";
 
    map<int,double> emean2;
    map<int,int> ntowers;
     
    int ietaold = -10000;
    int ieta0 = -100;
    
    // Initial values for emean_, emean2, esigma_, ntowers
 
    for(int i = ietamin_; i < ietamax_+1; i++)
       {
      emean_[i] = 0.;
      emean2[i] = 0.;
      esigma_[i] = 0.;
      ntowers[i] = 0;
       }
     
    for (vector<fastjet::PseudoJet>::const_iterator input_object = coll.begin (),
        fjInputsEnd = coll.end();  
     input_object != fjInputsEnd; ++input_object) {
 
       const reco::CandidatePtr & originalTower=(*inputs_)[ input_object->user_index()];
       ieta0 = ieta( originalTower );
       double Original_Et = originalTower->et();
       if(sumRecHits_){
          Original_Et = getEt(originalTower);
       }
 
       if( ieta0-ietaold != 0 )
      {
         emean_[ieta0] = emean_[ieta0]+Original_Et;
         emean2[ieta0] = emean2[ieta0]+Original_Et*Original_Et;
         ntowers[ieta0] = 1;
         ietaold = ieta0;
      }
       else
      {
         emean_[ieta0] = emean_[ieta0]+Original_Et;
         emean2[ieta0] = emean2[ieta0]+Original_Et*Original_Et;
         ntowers[ieta0]++;
      }
 
    }
 
    for(map<int,int>::const_iterator gt = geomtowers_.begin(); gt != geomtowers_.end(); gt++)    
       {
 
      int it = (*gt).first;
        
      double e1 = (*(emean_.find(it))).second;
      double e2 = (*emean2.find(it)).second;
      int nt = (*gt).second - (*(ntowersWithJets_.find(it))).second;
 
      LogDebug("PileUpSubtractor")<<" ieta : "<<it<<" number of towers : "<<nt<<" e1 : "<<e1<<" e2 : "<<e2<<"\n";
         
      if(nt > 0) {
         emean_[it] = e1/nt;
         double eee = e2/nt - e1*e1/(nt*nt);    
         if(eee<0.) eee = 0.;
         esigma_[it] = nSigmaPU_*sqrt(eee);
      }
      else
         {
            emean_[it] = 0.;
            esigma_[it] = 0.;
         }
      LogDebug("PileUpSubtractor")<<" ieta : "<<it<<" Pedestals : "<<emean_[it]<<"  "<<esigma_[it]<<"\n";
       }
 }

double MultipleAlgoIterator::getEt ( const reco::CandidatePtr & in ) const

Definition at line 189 of file MultipleAlgoIterator.cc.

References CaloTower::emEnergy(), relval_parameters_module::energy, edm::Ptr< T >::get(), CaloTower::hadEnergy(), CaloTower::id(), pos, funct::sin(), and PV3DBase< T, PVType, FrameType >::theta().

                                                                     {
    const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
    const GlobalPoint& pos=geo_->getPosition(ctc->id());
    double energy = ctc->emEnergy() + ctc->hadEnergy();
    double et = energy*sin(pos.theta());
    return et;
 }

double MultipleAlgoIterator::getEta ( const reco::CandidatePtr & in ) const

Definition at line 197 of file MultipleAlgoIterator.cc.

References PV3DBase< T, PVType, FrameType >::eta(), eta(), edm::Ptr< T >::get(), CaloTower::id(), and pos.

                                                                      {
    const CaloTower* ctc = dynamic_cast<const CaloTower*>(in.get());
    const GlobalPoint& pos=geo_->getPosition(ctc->id());
    double eta = pos.eta();
    return eta;
 }

void MultipleAlgoIterator::offsetCorrectJets ( )

virtual

Reimplemented from PileUpSubtractor.

Definition at line 16 of file MultipleAlgoIterator.cc.

References def, LogDebug, dt_dqm_sourceclient_common_cff::reco, and edm::second().

 {
 
   LogDebug("PileUpSubtractor")<<"The subtractor correcting jets...\n";
   jetOffset_.clear();
 
   using namespace reco;
   
   (*fjInputs_) = fjOriginalInputs_;
   rescaleRMS(nSigmaPU_);
   subtractPedestal(*fjInputs_);
   const fastjet::JetDefinition& def = fjClusterSeq_->jet_def();
   if ( !doAreaFastjet_ && !doRhoFastjet_) {
     fastjet::ClusterSequence newseq( *fjInputs_, def );
     (*fjClusterSeq_) = newseq;
   } else {
     fastjet::ClusterSequenceArea newseq( *fjInputs_, def , *fjActiveArea_ );
     (*fjClusterSeq_) = newseq;
   }
   
   (*fjJets_) = fastjet::sorted_by_pt(fjClusterSeq_->inclusive_jets(jetPtMin_));
   
   jetOffset_.reserve(fjJets_->size());
   
   vector<fastjet::PseudoJet>::iterator pseudojetTMP = fjJets_->begin (),
     jetsEnd = fjJets_->end();
   for (; pseudojetTMP != jetsEnd; ++pseudojetTMP) {
     
     int ijet = pseudojetTMP - fjJets_->begin();
     jetOffset_[ijet] = 0;
     
     std::vector<fastjet::PseudoJet> towers =
       sorted_by_pt(fjClusterSeq_->constituents(*pseudojetTMP));
     
     double newjetet = 0.;
     for(vector<fastjet::PseudoJet>::const_iterator ito = towers.begin(),
       towEnd = towers.end();
     ito != towEnd;
     ++ito)
       {
     const reco::CandidatePtr& originalTower = (*inputs_)[ito->user_index()];
     int it = ieta( originalTower );
     double Original_Et = originalTower->et();
     double etnew = Original_Et - (*emean_.find(it)).second - (*esigma_.find(it)).second;
     if(etnew < 0.) etnew = 0;
     newjetet = newjetet + etnew;
     jetOffset_[ijet] += Original_Et - etnew;
       }
   }
 }

void MultipleAlgoIterator::rescaleRMS ( double s )

Definition at line 8 of file MultipleAlgoIterator.cc.

                                              {
    for ( std::map<int, double>::iterator iter = esigma_.begin();
      iter != esigma_.end(); ++iter ){
       iter->second = s*(iter->second);
    }
 }

void MultipleAlgoIterator::subtractPedestal ( std::vector< fastjet::PseudoJet > & coll )

virtual

Reimplemented from PileUpSubtractor.

Definition at line 67 of file MultipleAlgoIterator.cc.

References getHLTprescales::index, and LogDebug.

 {
 
    LogDebug("PileUpSubtractor")<<"The subtractor subtracting pedestals...\n";
 
    int it = -100;
    int ip = -100;
 
    vector<fastjet::PseudoJet> newcoll;
 
    for (vector<fastjet::PseudoJet>::iterator input_object = coll.begin (),
        fjInputsEnd = coll.end(); 
     input_object != fjInputsEnd; ++input_object) {
     
       reco::CandidatePtr const & itow =  (*inputs_)[ input_object->user_index() ];
     
       it = ieta( itow );
       ip = iphi( itow );
     
       double Original_Et = itow->et();
       if(sumRecHits_){
          Original_Et = getEt(itow);
       }
 
       double etnew = Original_Et - (*(emean_.find(it))).second - (*(esigma_.find(it))).second;
       float mScale = etnew/input_object->Et(); 
       if(etnew < 0.) mScale = 0.;
     
       math::XYZTLorentzVectorD towP4(input_object->px()*mScale, input_object->py()*mScale,
                      input_object->pz()*mScale, input_object->e()*mScale);
     
       int index = input_object->user_index();
       input_object->reset ( towP4.px(),
                 towP4.py(),
                 towP4.pz(),
                 towP4.energy() );
       input_object->set_user_index(index);
 
       if(etnew > 0. && dropZeroTowers_) newcoll.push_back(*input_object);
    }
 
    if(dropZeroTowers_) coll = newcoll;
 
 }

Member Data Documentation

bool MultipleAlgoIterator::dropZeroTowers_

Definition at line 20 of file MultipleAlgoIterator.h.

bool MultipleAlgoIterator::sumRecHits_

Definition at line 19 of file MultipleAlgoIterator.h.

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation