BasicMuonAnalyzer Class Reference

Example class that can be used both within FWLite and within the full framework. More...

#include "PhysicsTools/UtilAlgos/interface/BasicMuonAnalyzer.h"

Inheritance diagram for BasicMuonAnalyzer:

Public Member Functions
void	analyze (const edm::EventBase &event) override
	everything that needs to be done during the event loop More...
	BasicMuonAnalyzer (const edm::ParameterSet &cfg, TFileDirectory &fs)
	default constructor More...
	BasicMuonAnalyzer (const edm::ParameterSet &cfg, TFileDirectory &fs, edm::ConsumesCollector &&iC)
void	beginJob () override
	everything that needs to be done before the event loop More...
void	endJob () override
	everything that needs to be done after the event loop More...
	~BasicMuonAnalyzer () override
	default destructor More...
Public Member Functions inherited from edm::BasicAnalyzer
	BasicAnalyzer (const edm::ParameterSet &cfg, TFileDirectory &fileService)
	default constructor More...
	BasicAnalyzer (const edm::ParameterSet &cfg, TFileDirectory &fileService, edm::ConsumesCollector &&iC)
virtual	~BasicAnalyzer ()
	default destructor More...

Private Attributes
std::map< std::string, TH1 * >	hists_
	histograms More...
edm::InputTag	muons_
	input tag for mouns More...
edm::EDGetTokenT< std::vector< reco::Muon > >	muonsToken_

Detailed Description

Example class that can be used both within FWLite and within the full framework.

This is an example for keeping classes that can be used both within FWLite and within the full framework. The class is derived from the BasicAnalyzer base class, which is an interface for the two wrapper classes EDAnalyzerWrapper and FWLiteAnalyzerWrapper. The latter provides basic configuration file reading and event looping equivalent to the FWLiteHistograms executable of this package. You can see the FWLiteAnalyzerWrapper class at work in the FWLiteWithBasicAnalyzer executable of this package.

Definition at line 20 of file BasicMuonAnalyzer.h.

Constructor & Destructor Documentation

BasicMuonAnalyzer() [1/2]

BasicMuonAnalyzer::BasicMuonAnalyzer	(	const edm::ParameterSet &	cfg,
		TFileDirectory &	fs
	)

default constructor

Definition at line 6 of file BasicMuonAnalyzer.cc.

    : edm::BasicAnalyzer::BasicAnalyzer(cfg, fs), muons_(cfg.getParameter<edm::InputTag>("muons")) {
  hists_["muonPt"] = fs.make<TH1F>("muonPt", "pt", 100, 0., 300.);
  hists_["muonEta"] = fs.make<TH1F>("muonEta", "eta", 100, -3., 3.);
  hists_["muonPhi"] = fs.make<TH1F>("muonPhi", "phi", 100, -5., 5.);
  hists_["mumuMass"] = fs.make<TH1F>("mumuMass", "mass", 90, 30., 120.);
}

References hists_, and TFileDirectory::make().

BasicMuonAnalyzer() [2/2]

BasicMuonAnalyzer::BasicMuonAnalyzer	(	const edm::ParameterSet &	cfg,
		TFileDirectory &	fs,
		edm::ConsumesCollector &&	iC
	)

Definition at line 13 of file BasicMuonAnalyzer.cc.

    : edm::BasicAnalyzer::BasicAnalyzer(cfg, fs),
      muons_(cfg.getParameter<edm::InputTag>("muons")),
      muonsToken_(iC.consumes<std::vector<reco::Muon> >(muons_)) {
  hists_["muonPt"] = fs.make<TH1F>("muonPt", "pt", 100, 0., 300.);
  hists_["muonEta"] = fs.make<TH1F>("muonEta", "eta", 100, -3., 3.);
  hists_["muonPhi"] = fs.make<TH1F>("muonPhi", "phi", 100, -5., 5.);
  hists_["mumuMass"] = fs.make<TH1F>("mumuMass", "mass", 90, 30., 120.);
}

References hists_, and TFileDirectory::make().

~BasicMuonAnalyzer()

BasicMuonAnalyzer::~BasicMuonAnalyzer ( )

inlineoverride

default destructor

Definition at line 26 of file BasicMuonAnalyzer.h.

{};

Member Function Documentation

analyze()

void BasicMuonAnalyzer::analyze ( const edm::EventBase &  event )

overridevirtual

everything that needs to be done during the event loop

Implements edm::BasicAnalyzer.

Definition at line 24 of file BasicMuonAnalyzer.cc.

                                                         {
  // define what muon you are using; this is necessary as FWLite is not
  // capable of reading edm::Views
  using reco::Muon;
 
  // Handle to the muon collection
  edm::Handle<std::vector<Muon> > muons;
  event.getByLabel(muons_, muons);
 
  // loop muon collection and fill histograms
  for (std::vector<Muon>::const_iterator mu1 = muons->begin(); mu1 != muons->end(); ++mu1) {
    hists_["muonPt"]->Fill(mu1->pt());
    hists_["muonEta"]->Fill(mu1->eta());
    hists_["muonPhi"]->Fill(mu1->phi());
    if (mu1->pt() > 20 && fabs(mu1->eta()) < 2.1) {
      for (std::vector<Muon>::const_iterator mu2 = muons->begin(); mu2 != muons->end(); ++mu2) {
        if (mu2 > mu1) {                            // prevent double conting
          if (mu1->charge() * mu2->charge() < 0) {  // check only muon pairs of unequal charge
            if (mu2->pt() > 20 && fabs(mu2->eta()) < 2.1) {
              hists_["mumuMass"]->Fill((mu1->p4() + mu2->p4()).mass());
            }
          }
        }
      }
    }
  }
}

References hists_, EgHLTOffHistBins_cfi::mass, dumpRecoGeometry_cfg::Muon, PDWG_BPHSkim_cff::muons, and muons_.

beginJob()

void BasicMuonAnalyzer::beginJob ( void  )

inlineoverridevirtual

everything that needs to be done before the event loop

Implements edm::BasicAnalyzer.

Definition at line 28 of file BasicMuonAnalyzer.h.

{};

endJob()

void BasicMuonAnalyzer::endJob ( void  )

inlineoverridevirtual

everything that needs to be done after the event loop

Implements edm::BasicAnalyzer.

Definition at line 30 of file BasicMuonAnalyzer.h.

{};

Member Data Documentation

hists_

std::map<std::string, TH1*> BasicMuonAnalyzer::hists_

private

histograms

Definition at line 39 of file BasicMuonAnalyzer.h.

Referenced by analyze(), and BasicMuonAnalyzer().

muons_

edm::InputTag BasicMuonAnalyzer::muons_

private

input tag for mouns

Definition at line 36 of file BasicMuonAnalyzer.h.

Referenced by analyze().

muonsToken_

edm::EDGetTokenT<std::vector<reco::Muon> > BasicMuonAnalyzer::muonsToken_

private

Definition at line 37 of file BasicMuonAnalyzer.h.