Inheritance diagram for PFTauDecayModeCutMultiplexer:

Classes
struct	ComputerAndCut
Public Types
typedef std::vector < ComputerAndCut >	CutList
typedef std::map< int, CutList::iterator >	DecayModeToCutMap
Public Member Functions
void	beginEvent (const edm::Event &event, const edm::EventSetup &eventSetup)
double	discriminate (const PFTauRef &thePFTau)
	PFTauDecayModeCutMultiplexer (const edm::ParameterSet &)
	~PFTauDecayModeCutMultiplexer ()
Private Attributes
DecayModeToCutMap	computerMap_
CutList	computers_
edm::InputTag	discriminantToMultiplex_
edm::InputTag	pfTauDecayModeIndexSrc_
edm::Handle< PFTauDiscriminator >	pfTauDecayModeIndices
edm::Handle< PFTauDiscriminator >	targetDiscriminant

Detailed Description

Definition at line 31 of file PFTauDecayModeCutMultiplexer.cc.

Member Typedef Documentation

typedef std::vector<ComputerAndCut> PFTauDecayModeCutMultiplexer::CutList

Definition at line 41 of file PFTauDecayModeCutMultiplexer.cc.

typedef std::map<int, CutList::iterator> PFTauDecayModeCutMultiplexer::DecayModeToCutMap

Definition at line 42 of file PFTauDecayModeCutMultiplexer.cc.

Constructor & Destructor Documentation

PFTauDecayModeCutMultiplexer::PFTauDecayModeCutMultiplexer ( const edm::ParameterSet & iConfig ) [explicit]

Definition at line 61 of file PFTauDecayModeCutMultiplexer.cc.

References computerMap_, PFTauDecayModeCutMultiplexer::ComputerAndCut::computerName, computers_, discriminantToMultiplex_, Exception, edm::ParameterSet::getParameter(), pfTauDecayModeIndexSrc_, and PFTauDecayModeCutMultiplexer::ComputerAndCut::userCut.

                                                                                        :PFTauDiscriminationProducerBase(iConfig)
{
   pfTauDecayModeIndexSrc_  = iConfig.getParameter<edm::InputTag>("PFTauDecayModeSrc");
   discriminantToMultiplex_ = iConfig.getParameter<edm::InputTag>("PFTauDiscriminantToMultiplex");

   //get the computer/decay mode map
   std::vector<edm::ParameterSet> decayModeMap = iConfig.getParameter<std::vector<edm::ParameterSet> >("computers");
   computers_.reserve(decayModeMap.size());

   // for each decay mode MVA implementation (which may correspond to multiple decay modes, map the decay modes to the correct MVA computer
   for(std::vector<edm::ParameterSet>::const_iterator iComputer  = decayModeMap.begin();
                                            iComputer != decayModeMap.end();
                                          ++iComputer)
   {
      ComputerAndCut toInsert;
      toInsert.computerName = iComputer->getParameter<std::string>("computerName");
      toInsert.userCut      = iComputer->getParameter<double>("cut");
      CutList::iterator computerJustAdded = computers_.insert(computers_.end(), toInsert); //add this computer to the end of the list

      //populate the map
      std::vector<int> associatedDecayModes = iComputer->getParameter<std::vector<int> >("decayModeIndices");
      for(std::vector<int>::const_iterator iDecayMode  = associatedDecayModes.begin();
                                      iDecayMode != associatedDecayModes.end();
                                    ++iDecayMode)
      {
         //map this integer specifying the decay mode to the MVA comptuer we just added to the list
         std::pair<DecayModeToCutMap::iterator, bool> insertResult = computerMap_.insert(std::make_pair(*iDecayMode, computerJustAdded));

         //make sure we aren't double mapping a decay mode
         if(insertResult.second == false) { //indicates that the current key (decaymode) has already been entered!
            throw cms::Exception("PFTauDecayModeCutMultiplexer::ctor") << "A tau decay mode: " << *iDecayMode << " has been mapped to two different MVA implementations, "
                                                              << insertResult.first->second->computerName << " and " << toInsert.computerName 
                                                              << ". Please check the appropriate cfi file." << std::endl;
         }
      }
   }
}

PFTauDecayModeCutMultiplexer::~PFTauDecayModeCutMultiplexer ( ) [inline]

Definition at line 34 of file PFTauDecayModeCutMultiplexer.cc.

{}

Member Function Documentation

void PFTauDecayModeCutMultiplexer::beginEvent	(	const edm::Event &	event,
		const edm::EventSetup &	eventSetup
	)		`[virtual]`

Reimplemented from TauDiscriminationProducerBase< TauType, TauDiscriminator >.

Definition at line 101 of file PFTauDecayModeCutMultiplexer.cc.

References discriminantToMultiplex_, edm::Event::getByLabel(), pfTauDecayModeIndexSrc_, pfTauDecayModeIndices, and targetDiscriminant.

{

   iEvent.getByLabel(pfTauDecayModeIndexSrc_, pfTauDecayModeIndices);
   iEvent.getByLabel(discriminantToMultiplex_, targetDiscriminant);
}

double PFTauDecayModeCutMultiplexer::discriminate ( const PFTauRef & thePFTau )

Definition at line 108 of file PFTauDecayModeCutMultiplexer.cc.

References computerMap_, and pfTauDecayModeIndices.

{
   // get decay mode for current tau
   int decayMode = lrint( (*pfTauDecayModeIndices)[pfTau] ); //convert to int

   // get value we are trying to multiplex
   float valueToMultiplex = (*targetDiscriminant)[pfTau];

   // Get correct cut
   DecayModeToCutMap::iterator iterToComputer = computerMap_.find(decayMode);
   if(iterToComputer != computerMap_.end()) //if we don't have a MVA mapped to this decay mode, skip it, it fails.
   {
      // use the supplied cut to make a decision
      if (valueToMultiplex > iterToComputer->second->userCut) 
         return 1.0;
      else 
         return 0.0;
   }

   // no computer associated to this decay mode; it fails
   return 0.;
}