AnalysisTasksAnalyzerJEC Class Reference

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

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

Inheritance diagram for AnalysisTasksAnalyzerJEC:

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

Private Attributes
bool	help_
std::map< std::string, TH2 * >	hists_
	histograms More...
std::string	jecLevel_
std::string	jecSetLabel_
unsigned int	jetInEvents_
edm::InputTag	Jets_
	input tag for mouns More...
std::string	outputFileName_
std::string	patJetCorrFactors_

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 19 of file AnalysisTasksAnalyzerJEC.h.

Constructor & Destructor Documentation

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

default constructor

Definition at line 9 of file AnalysisTasksAnalyzerJEC.cc.

References hists_, jecLevel_, and TFileDirectory::make().

                                                                                                : 
  edm::BasicAnalyzer::BasicAnalyzer(cfg, fs),
  Jets_(cfg.getParameter<edm::InputTag>("Jets")),
  jecLevel_(cfg.getParameter<std::string>("jecLevel")),
  jecSetLabel_(cfg.getParameter<std::string>("jecSetLabel"))
{
  hists_["Response"  ] = fs.make<TH2F>("Response" , "response "+TString(jecLevel_)+"; #eta;p_{T}(reco)/p_{T}(gen)"  ,  5,  -3.3, 3.3, 100, 0.4, 1.6);
}

AnalysisTasksAnalyzerJEC::~AnalysisTasksAnalyzerJEC ( )

virtual

default destructor

deconstructor

Definition at line 18 of file AnalysisTasksAnalyzerJEC.cc.

{
}

Member Function Documentation

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

virtual

everything that needs to be done during the event loop

Implements edm::BasicAnalyzer.

Definition at line 23 of file AnalysisTasksAnalyzerJEC.cc.

References hists_, jecLevel_, jecSetLabel_, METSkim_cff::Jets, Jets_, and gen::k.

{
  // define what Jet you are using; this is necessary as FWLite is not 
  // capable of reading edm::Views
  using pat::Jet;

  // Handle to the Jet collection
  edm::Handle<std::vector<Jet> > Jets;
  event.getByLabel(Jets_, Jets);

  // loop Jet collection and fill histograms
  for(std::vector<Jet>::const_iterator jet_it=Jets->begin(); jet_it!=Jets->end(); ++jet_it){  


      for(unsigned int k=0; k< jet_it->availableJECSets().size(); ++k){
      edm::LogInfo ("hint1") <<"\n \n *************** HINT 1 *************** \n \n Label of available JEC Set: "<< jet_it->availableJECSets()[k] 
                 <<"\n \n You found out which JEC Sets were created within the PAT tuple creation! The wrong label caused the segmentation fault in the next for-loop where you ask for JEC levels of a JEC Set that does not exist. Correct the JEC label in your config file and eliminate the segmentation fault. \n  *********************************************** \n"; 
      }             
      for(unsigned int k=0; k< jet_it->availableJECLevels().size(); ++k){
      edm::LogInfo("hint2")<<" \n \n  Label of available JEC level: "<< jet_it->availableJECLevels(jecSetLabel_)[k] << "\n \n "; 
      }
      edm::LogInfo("hint2")<<"\n \n  *************** HINT 2 ************** \n You did it correctly congratulations!!!!  And you found out above which JEC levels are saved within the jets. We want to investigate these in the following with the response function. At the moment you are trying to access the JEC Level: "
               << jecLevel_ << ". Does it exist? This causes the error below (see 'Exception Message')! Correct the label of the correction level to an existing one that you are interested in. \n ******************************************* \n " <<std::endl;               
      if(jet_it->genParticlesSize()>0){
      hists_["Response" ]->Fill( jet_it->correctedJet(jecLevel_).eta(), jet_it->correctedJet(jecLevel_).pt()/ jet_it->genParticle(0)->pt());
      }
  }
}

void AnalysisTasksAnalyzerJEC::beginJob ( void  )

inlinevirtual

everything that needs to be done before the event loop

Implements edm::BasicAnalyzer.

Definition at line 27 of file AnalysisTasksAnalyzerJEC.h.

{};

void AnalysisTasksAnalyzerJEC::endJob ( void  )

inlinevirtual

everything that needs to be done after the event loop

Implements edm::BasicAnalyzer.

Definition at line 29 of file AnalysisTasksAnalyzerJEC.h.

{};

Member Data Documentation

bool AnalysisTasksAnalyzerJEC::help_

private

Definition at line 39 of file AnalysisTasksAnalyzerJEC.h.

std::map<std::string, TH2*> AnalysisTasksAnalyzerJEC::hists_

private

histograms

Definition at line 43 of file AnalysisTasksAnalyzerJEC.h.

Referenced by AnalysisTasksAnalyzerJEC(), and analyze().

std::string AnalysisTasksAnalyzerJEC::jecLevel_

private

Definition at line 36 of file AnalysisTasksAnalyzerJEC.h.

Referenced by AnalysisTasksAnalyzerJEC(), and analyze().

std::string AnalysisTasksAnalyzerJEC::jecSetLabel_

private

Definition at line 37 of file AnalysisTasksAnalyzerJEC.h.

Referenced by analyze().

unsigned int AnalysisTasksAnalyzerJEC::jetInEvents_

private

Definition at line 41 of file AnalysisTasksAnalyzerJEC.h.

edm::InputTag AnalysisTasksAnalyzerJEC::Jets_

private

input tag for mouns

Definition at line 35 of file AnalysisTasksAnalyzerJEC.h.

Referenced by analyze().

std::string AnalysisTasksAnalyzerJEC::outputFileName_

private

Definition at line 40 of file AnalysisTasksAnalyzerJEC.h.

std::string AnalysisTasksAnalyzerJEC::patJetCorrFactors_

private

Definition at line 38 of file AnalysisTasksAnalyzerJEC.h.