JetResolutionDemo Class Reference

Inheritance diagram for JetResolutionDemo:

Public Member Functions
	JetResolutionDemo (const edm::ParameterSet &)
	~JetResolutionDemo () override
Public Member Functions inherited from edm::EDAnalyzer
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
	EDAnalyzer ()
SerialTaskQueue *	globalLuminosityBlocksQueue ()
SerialTaskQueue *	globalRunsQueue ()
ModuleDescription const &	moduleDescription () const
std::string	workerType () const
	~EDAnalyzer () override
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...
	EDConsumerBase ()
	EDConsumerBase (EDConsumerBase &&)=default
	EDConsumerBase (EDConsumerBase const &)=delete
ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const
std::vector< ESProxyIndex > const &	esGetTokenIndicesVector (edm::Transition iTrans) const
std::vector< ESRecordIndex > const &	esGetTokenRecordIndicesVector (edm::Transition iTrans) const
ProductResolverIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductResolverIndexAndSkipBit > &) const
std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
EDConsumerBase &	operator= (EDConsumerBase &&)=default
EDConsumerBase const &	operator= (EDConsumerBase const &)=delete
bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const
void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)
void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)
virtual	~EDConsumerBase () noexcept(false)

Private Member Functions
void	analyze (const edm::Event &, const edm::EventSetup &) override
void	endJob () override

Private Attributes
edm::Service< TFileService >	fs
bool	m_debug = false
edm::EDGetTokenT< std::vector< pat::Jet > >	m_jets_token
std::string	m_payload
TH2 *	m_res_vs_eta = nullptr
std::string	m_resolutions_file
edm::EDGetTokenT< double >	m_rho_token
std::string	m_scale_factors_file
bool	m_use_conddb = false

Additional Inherited Members
Public Types inherited from edm::EDAnalyzer
typedef EDAnalyzer	ModuleType
Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels
Static Public Member Functions inherited from edm::EDAnalyzer
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &)
static bool	wantsGlobalLuminosityBlocks ()
static bool	wantsGlobalRuns ()
static bool	wantsInputProcessBlocks ()
static bool	wantsProcessBlocks ()
static bool	wantsStreamLuminosityBlocks ()
static bool	wantsStreamRuns ()
Protected Member Functions inherited from edm::EDConsumerBase
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
template<BranchType B = InEvent>
EDConsumerBaseAdaptor< B >	consumes (edm::InputTag tag) noexcept
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()
template<Transition Tr = Transition::Event>
constexpr auto	esConsumes () noexcept
template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)
template<Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag tag) noexcept
template<Transition Tr = Transition::Event>
ESGetTokenGeneric	esConsumes (eventsetup::EventSetupRecordKey const &iRecord, eventsetup::DataKey const &iKey)
	Used with EventSetupRecord::doGet. More...
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

Detailed Description

Definition at line 25 of file JetResolutionDemo.cc.

Constructor & Destructor Documentation

JetResolutionDemo()

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

explicit

Definition at line 52 of file JetResolutionDemo.cc.

                                                                   {
  m_jets_token = consumes<std::vector<pat::Jet>>(iConfig.getParameter<edm::InputTag>("jets"));
  m_rho_token = consumes<double>(iConfig.getParameter<edm::InputTag>("rho"));
  m_debug = iConfig.getUntrackedParameter<bool>("debug", false);
  m_use_conddb = iConfig.getUntrackedParameter<bool>("useCondDB", false);
 
  if (m_use_conddb)
    m_payload = iConfig.getParameter<std::string>("payload");
  else {
    m_resolutions_file = iConfig.getParameter<edm::FileInPath>("resolutionsFile").fullPath();
    m_scale_factors_file = iConfig.getParameter<edm::FileInPath>("scaleFactorsFile").fullPath();
  }
}

References contentValuesFiles::fullPath, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), m_debug, m_jets_token, m_payload, m_resolutions_file, m_rho_token, m_scale_factors_file, m_use_conddb, and AlCaHLTBitMon_QueryRunRegistry::string.

~JetResolutionDemo()

JetResolutionDemo::~JetResolutionDemo ( )

override

Definition at line 66 of file JetResolutionDemo.cc.

{}

Member Function Documentation

analyze()

void JetResolutionDemo::analyze ( const edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

overrideprivatevirtual

Implements edm::EDAnalyzer.

Definition at line 69 of file JetResolutionDemo.cc.

                                                                                   {
  edm::Handle<std::vector<pat::Jet>> jets;
  iEvent.getByToken(m_jets_token, jets);
 
  edm::Handle<double> rho;
  iEvent.getByToken(m_rho_token, rho);
 
  // Access jet resolution and scale factor from the condition database
  // or from text files
  JME::JetResolution resolution;
  JME::JetResolutionScaleFactor res_sf;
 
  // Two differents way to create a class instance
  if (m_use_conddb) {
    // First way, using the get() static method
    resolution = JME::JetResolution::get(iSetup, m_payload);
    res_sf = JME::JetResolutionScaleFactor::get(iSetup, m_payload);
  } else {
    // Second way, using the constructor
    resolution = JME::JetResolution(m_resolutions_file);
    res_sf = JME::JetResolutionScaleFactor(m_scale_factors_file);
  }
 
  if (m_debug) {
    // Dump resolution
    resolution.dump();
  }
 
  if (!m_res_vs_eta) {
    // Advanced usage. Create the histogram by retriving the eta binning directly from the JetResolutionObject. This suppose you need that the parametrization only depends on eta.
 
    // Get the list of bins of this object
    const std::vector<JME::Binning>& bins = resolution.getResolutionObject()->getDefinition().getBins();
 
    // Check that the first bin is eta
    if ((bins.size()) && (bins[0] == JME::Binning::JetEta)) {
      const std::vector<JME::JetResolutionObject::Record> records = resolution.getResolutionObject()->getRecords();
      // Get all records from the object. Each record correspond to a different binning and different parameters
 
      std::vector<float> etas;
      for (const auto& record : records) {
        if (etas.empty()) {
          etas.push_back(record.getBinsRange()[0].min);
          etas.push_back(record.getBinsRange()[0].max);
        } else {
          etas.push_back(record.getBinsRange()[0].max);
        }
      }
 
      std::vector<float> res;
      for (std::size_t i = 0; i < 40; i++) {
        res.push_back(i * 0.005);
      }
 
      m_res_vs_eta = fs->make<TH2F>("res_vs_eta", "res_vs_eta", etas.size() - 1, &etas[0], res.size() - 1, &res[0]);
    }
  }
 
  for (const auto& jet : *jets) {
    if (m_debug) {
      std::cout << "New jet; pt=" << jet.pt() << "  eta=" << jet.eta() << "  phi=" << jet.phi()
                << "  e=" << jet.energy() << "  rho=" << *rho << std::endl;
    }
 
    // Get resolution for this jet
    // The method to use is getResolution(const JME::JetParameters& parameters) from a JetResolution object
 
    // You *must* now in advance which variables are needed for getting the resolution. For the moment, only pt and eta are needed, but this will
    // probably change in the futur when PU dependency is added. Please keep an eye on the twiki page
    //     https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookJetEnergyResolution
    // to stay up-to-date. All currently supported parameters (ie, 'set' functions) are available here:
    //     https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookJetEnergyResolution#List_of_supported_parameters
 
    // Three way to create a JetParameters object
 
    // First, using 'set' functions
    JME::JetParameters parameters_1;
    parameters_1.setJetPt(jet.pt());
    parameters_1.setJetEta(jet.eta());
    parameters_1.setRho(*rho);
 
    // You can also chain calls
 
    JME::JetParameters parameters_2;
    parameters_2.setJetPt(jet.pt()).setJetEta(jet.eta()).setRho(*rho);
 
    // Second, using the set() function
    JME::JetParameters parameters_3;
    parameters_3.set(JME::Binning::JetPt, jet.pt());
    parameters_3.set({JME::Binning::JetEta, jet.eta()});
    parameters_3.set({JME::Binning::Rho, *rho});
 
    // Or
 
    JME::JetParameters parameters_4;
    parameters_4.set(JME::Binning::JetPt, jet.pt()).set(JME::Binning::JetEta, jet.eta()).set(JME::Binning::Rho, *rho);
 
    // Third, using a initializer_list
    JME::JetParameters parameters_5 = {
        {JME::Binning::JetPt, jet.pt()}, {JME::Binning::JetEta, jet.eta()}, {JME::Binning::Rho, *rho}};
 
    // Now, get the resolution
 
    float r = resolution.getResolution(parameters_1);
    if (m_debug) {
      std::cout << "Resolution with parameters_1: " << r << std::endl;
      std::cout << "Resolution with parameters_2: " << resolution.getResolution(parameters_2) << std::endl;
      std::cout << "Resolution with parameters_3: " << resolution.getResolution(parameters_3) << std::endl;
      std::cout << "Resolution with parameters_4: " << resolution.getResolution(parameters_4) << std::endl;
      std::cout << "Resolution with parameters_5: " << resolution.getResolution(parameters_5) << std::endl;
 
      // You can also use a shortcut to get the resolution
      float r2 = resolution.getResolution(
          {{JME::Binning::JetPt, jet.pt()}, {JME::Binning::JetEta, jet.eta()}, {JME::Binning::Rho, *rho}});
      std::cout << "Resolution using shortcut   : " << r2 << std::endl;
    }
 
    m_res_vs_eta->Fill(jet.eta(), r);
 
    // We do the same thing to access the scale factors
    float sf = res_sf.getScaleFactor({{JME::Binning::JetPt, jet.pt()}, {JME::Binning::JetEta, jet.eta()}});
 
    // Access up and down variation of the scale factor
    float sf_up =
        res_sf.getScaleFactor({{JME::Binning::JetPt, jet.pt()}, {JME::Binning::JetEta, jet.eta()}}, Variation::UP);
    float sf_down =
        res_sf.getScaleFactor({{JME::Binning::JetPt, jet.pt()}, {JME::Binning::JetEta, jet.eta()}}, Variation::DOWN);
 
    if (m_debug) {
      std::cout << "Scale factors (Nominal / Up / Down) : " << sf << " / " << sf_up << " / " << sf_down << std::endl;
    }
  }
}

References trigObjTnPSource_cfi::bins, gather_cfg::cout, DOWN, EnergyCorrector::etas, fs, JME::JetResolution::get(), JME::JetResolutionScaleFactor::get(), JME::JetResolutionScaleFactor::getScaleFactor(), mps_fire::i, iEvent, metsig::jet, JME::JetEta, JME::JetPt, singleTopDQM_cfi::jets, m_debug, m_jets_token, m_payload, m_res_vs_eta, m_resolutions_file, m_rho_token, m_scale_factors_file, m_use_conddb, TFileService::make(), alignCSCRings::r, diffTwoXMLs::r2, GlobalPosition_Frontier_DevDB_cff::record, L1TObjectsTimingClient_cff::resolution, rho, JME::Rho, JME::JetParameters::set(), JME::JetParameters::setJetEta(), JME::JetParameters::setJetPt(), JME::JetParameters::setRho(), and UP.

endJob()

void JetResolutionDemo::endJob ( void  )

overrideprivatevirtual

Reimplemented from edm::EDAnalyzer.

Definition at line 203 of file JetResolutionDemo.cc.

{}

Member Data Documentation

fs

edm::Service<TFileService> JetResolutionDemo::fs

private

Definition at line 44 of file JetResolutionDemo.cc.

Referenced by analyze().

m_debug

bool JetResolutionDemo::m_debug = false

private

Definition at line 37 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_jets_token

edm::EDGetTokenT<std::vector<pat::Jet> > JetResolutionDemo::m_jets_token

private

Definition at line 34 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_payload

std::string JetResolutionDemo::m_payload

private

Definition at line 40 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_res_vs_eta

TH2* JetResolutionDemo::m_res_vs_eta = nullptr

private

Definition at line 46 of file JetResolutionDemo.cc.

Referenced by analyze().

m_resolutions_file

std::string JetResolutionDemo::m_resolutions_file

private

Definition at line 41 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_rho_token

edm::EDGetTokenT<double> JetResolutionDemo::m_rho_token

private

Definition at line 35 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_scale_factors_file

std::string JetResolutionDemo::m_scale_factors_file

private

Definition at line 42 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().

m_use_conddb

bool JetResolutionDemo::m_use_conddb = false

private

Definition at line 38 of file JetResolutionDemo.cc.

Referenced by analyze(), and JetResolutionDemo().