DTT0CalibrationNew Class Reference

#include <DTT0CalibrationNew.h>

Inheritance diagram for DTT0CalibrationNew:

Public Member Functions
void	analyze (const edm::Event &event, const edm::EventSetup &eventSetup)
	Fill the maps with t0 (by channel) More...
	DTT0CalibrationNew (const edm::ParameterSet &pset)
	Constructor. More...
void	endJob ()
	Compute the mean and the RMS of the t0 from the maps and write them to the DB with channel granularity. More...
virtual	~DTT0CalibrationNew ()
	Destructor. More...
Public Member Functions inherited from edm::EDAnalyzer
	EDAnalyzer ()
std::string	workerType () const
virtual	~EDAnalyzer ()

Private Member Functions
std::string	getHistoName (const DTWireId &wId) const
std::string	getHistoName (const DTLayerId &lId) const

Private Attributes
std::vector< std::string >	cellsWithHistos
std::string	dbLabel
bool	debug
std::string	digiLabel
edm::ESHandle< DTGeometry >	dtGeom
unsigned int	eventsForLayerT0
unsigned int	eventsForWireT0
TH1D *	hT0SectorHisto
std::map< DTWireId, double >	mK
std::map< DTWireId, double >	mK_ref
std::map< DTWireId, int >	nDigiPerWire
std::map< DTWireId, int >	nDigiPerWire_ref
unsigned int	nevents
std::map< DTWireId, double >	qK
unsigned int	rejectDigiFromPeak
unsigned int	retryForLayerT0
int	selSector
int	selWheel
TSpectrum *	spectrum
std::map< DTWireId, double >	theAbsoluteT0PerWire
std::string	theCalibSector
std::string	theCalibWheel
std::map< DTChamberId, int >	theCountT0ByChamber
TFile *	theFile
std::map< DTLayerId, TH1I * >	theHistoLayerMap
std::map< DTWireId, TH1I * >	theHistoWireMap
TFile *	theOutputFile
std::map< DTChamberId, double >	theRefT0ByChamber
std::map< DTWireId, double >	theRelativeT0PerWire
std::map< std::string, double >	theSigmaT0LayerMap
std::map< DTWireId, double >	theSigmaT0PerWire
std::map< DTChamberId, double >	theSumT0ByChamber
std::map< std::string, double >	theT0LayerMap
std::map< DTLayerId, double >	theTPPeakMap
unsigned int	timeBoxWidth
double	tpPeakWidth
double	tpPeakWidthPerLayer
std::vector< DTWireId >	wireIdWithHistos

Additional Inherited Members
Public Types inherited from edm::EDAnalyzer
typedef EDAnalyzer	ModuleType
typedef WorkerT< EDAnalyzer >	WorkerType
Static Public Member Functions inherited from edm::EDAnalyzer
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::EDAnalyzer
CurrentProcessingContext const *	currentContext () const

Detailed Description

Analyzer class computes the mean and RMS of t0 from pulses. Those values are written in the DB with cell granularity. The mean value for each channel is normalized to a reference time common to all the sector. The t0 of wires in odd layers are corrected for the relative difference between odd and even layers

Date:

2008/09/01 13:29:28

Revision:

1.2

Author

S. Bolognesi - INFN Torino

Definition at line 31 of file DTT0CalibrationNew.h.

Constructor & Destructor Documentation

DTT0CalibrationNew::DTT0CalibrationNew

(

const edm::ParameterSet &

pset

)

Constructor.

Definition at line 36 of file DTT0CalibrationNew.cc.

References gather_cfg::cout, dtTTrigAnalyzer_cfg::dbLabel, debug, dtT0WireCalibration_cfg::digiLabel, dtT0WireCalibration_cfg::eventsForLayerT0, dtT0WireCalibration_cfg::eventsForWireT0, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), nevents, dtT0WireCalibration_cfg::rejectDigiFromPeak, dtT0WireCalibration_cfg::rootFileName, relativeConstraints::station, interactiveExample::theFile, and dtT0WireCalibration_cfg::tpPeakWidth.

                                                                  {
  // Get the debug parameter for verbose output
  debug = pset.getUntrackedParameter<bool>("debug");
  if(debug) 
    cout << "[DTT0CalibrationNew]Constructor called!" << endl;

  // Get the label to retrieve digis from the event
  digiLabel = pset.getUntrackedParameter<string>("digiLabel");

  dbLabel  = pset.getUntrackedParameter<string>("dbLabel", "");

  // The root file which contain the histos per layer
  string rootFileName = pset.getUntrackedParameter<string>("rootFileName","DTT0PerLayer.root");
  theFile = new TFile(rootFileName.c_str(), "RECREATE");
 
  theCalibWheel =  pset.getUntrackedParameter<string>("calibWheel", "All"); //FIXME amke a vector of integer instead of a string
  if(theCalibWheel != "All") {
    stringstream linestr;
    int selWheel;
    linestr << theCalibWheel;
    linestr >> selWheel;
    cout << "[DTT0CalibrationNewPerLayer] chosen wheel " << selWheel << endl;
  }

  // Sector/s to calibrate
  theCalibSector =  pset.getUntrackedParameter<string>("calibSector", "All"); //FIXME amke a vector of integer instead of a string
  if(theCalibSector != "All") {
    stringstream linestr;
    int selSector;
    linestr << theCalibSector;
    linestr >> selSector;
    cout << "[DTT0CalibrationNewPerLayer] chosen sector " << selSector << endl;
  }

  vector<string> defaultCell;
  defaultCell.push_back("None");
  cellsWithHistos = pset.getUntrackedParameter<vector<string> >("cellsWithHisto", defaultCell);
  for(vector<string>::const_iterator cell = cellsWithHistos.begin(); cell != cellsWithHistos.end(); cell++){
    if((*cell) != "None"){
      stringstream linestr;
      int wheel,sector,station,sl,layer,wire;
      linestr << (*cell);
      linestr >> wheel >> sector >> station >> sl >> layer >> wire;
      wireIdWithHistos.push_back(DTWireId(wheel,station,sector,sl,layer,wire));
    }
  }

  hT0SectorHisto=0;

  nevents=0;
  eventsForLayerT0 = pset.getParameter<unsigned int>("eventsForLayerT0");
  eventsForWireT0 = pset.getParameter<unsigned int>("eventsForWireT0");
  tpPeakWidth = pset.getParameter<double>("tpPeakWidth");
  tpPeakWidthPerLayer = pset.getParameter<double>("tpPeakWidthPerLayer");
  timeBoxWidth = pset.getParameter<unsigned int>("timeBoxWidth"); 
  rejectDigiFromPeak = pset.getParameter<unsigned int>("rejectDigiFromPeak"); 

  spectrum = new TSpectrum(5);
  retryForLayerT0 = 0;  
}

DTT0CalibrationNew::~DTT0CalibrationNew ( )

virtual

Destructor.

Definition at line 98 of file DTT0CalibrationNew.cc.

References gather_cfg::cout, debug, and interactiveExample::theFile.

                                       {
  if(debug) 
    cout << "[DTT0CalibrationNew]Destructor called!" << endl;

  delete spectrum;
  theFile->Close();
}

Member Function Documentation

void DTT0CalibrationNew::analyze ( const edm::Event &  event, const edm::EventSetup &  eventSetup  )

virtual

Fill the maps with t0 (by channel)

Perform the real analysis.

Implements edm::EDAnalyzer.

Definition at line 107 of file DTT0CalibrationNew.cc.

References abs, newFWLiteAna::bin, DTSuperLayerId::chamberId(), DTTimeUnits::counts, gather_cfg::cout, dtTTrigAnalyzer_cfg::dbLabel, debug, dtT0WireCalibration_cfg::digiLabel, edm::EventID::event(), dtT0WireCalibration_cfg::eventsForLayerT0, dtT0WireCalibration_cfg::eventsForWireT0, spr::find(), edm::EventSetup::get(), mergeVDriftHistosByStation::getHistoName(), edm::EventBase::id(), plotscripts::mean(), nevents, dtT0WireCalibration_cfg::rejectDigiFromPeak, edm::EventID::run(), DTChamberId::sector(), python.multivaluedict::sort(), DTLayerId::superlayerId(), interactiveExample::theFile, dtT0WireCalibration_cfg::tpPeakWidth, and DTChamberId::wheel().

                                                                                        {
  if(debug || event.id().event() % 500==0)
    cout << "--- [DTT0CalibrationNew] Analysing Event: #Run: " << event.id().run()
     << " #Event: " << event.id().event() << endl;
  nevents++;

  // Get the digis from the event
  Handle<DTDigiCollection> digis; 
  event.getByLabel(digiLabel, digis);

  // Get the DT Geometry
  eventSetup.get<MuonGeometryRecord>().get(dtGeom);

  // Get ttrig DB
  edm::ESHandle<DTTtrig> tTrigMap;
  eventSetup.get<DTTtrigRcd>().get(dbLabel,tTrigMap);
  
  // Iterate through all digi collections ordered by LayerId   
  DTDigiCollection::DigiRangeIterator dtLayerIt;
  for (dtLayerIt = digis->begin();
       dtLayerIt != digis->end();
       ++dtLayerIt){
    // Get the iterators over the digis associated with this LayerId
    const DTDigiCollection::Range& digiRange = (*dtLayerIt).second;
  
    // Get the layerId
    const DTLayerId layerId = (*dtLayerIt).first; //FIXME: check to be in the right sector
    const DTChamberId chamberId = layerId.superlayerId().chamberId();

    if((theCalibWheel != "All") && (layerId.superlayerId().chamberId().wheel() != selWheel))
      continue;
    if((theCalibSector != "All") && (layerId.superlayerId().chamberId().sector() != selSector))
      continue;
 
    //if(debug) {
    //  cout << "Layer " << layerId<<" with "<<distance(digiRange.first, digiRange.second)<<" digi"<<endl;
    //}

    float tTrig,tTrigRMS, kFactor;
    tTrigMap->get(layerId.superlayerId(), tTrig, tTrigRMS, kFactor, DTTimeUnits::counts );
    if(debug&&(nevents <= 1)){
    cout << "  Superlayer: " << layerId.superlayerId() << endl 
         << "            tTrig,tTrigRMS= " << tTrig << ", " << tTrigRMS << endl;
    }   

    // Loop over all digis in the given layer
    for (DTDigiCollection::const_iterator digi = digiRange.first;
     digi != digiRange.second;
     digi++) {
      double t0 = (*digi).countsTDC();

      //Use first bunch of events to fill t0 per layer
      if(nevents < eventsForLayerT0){
    //Get the per-layer histo from the map
    TH1I *hT0LayerHisto = theHistoLayerMap[layerId];
    //If it doesn't exist, book it
    if(hT0LayerHisto == 0){
      theFile->cd();
      float hT0Min = tTrig - 2*tTrigRMS;
      float hT0Max = hT0Min + timeBoxWidth;
      hT0LayerHisto = new TH1I(getHistoName(layerId).c_str(),
                   "T0 from pulses by layer (TDC counts, 1 TDC count = 0.781 ns)",
                   timeBoxWidth,hT0Min,hT0Max);
      if(debug)
        cout << "  New T0 per Layer Histo: " << hT0LayerHisto->GetName() << endl;
      theHistoLayerMap[layerId] = hT0LayerHisto;
    }
    
    //Fill the histos
    theFile->cd();
    if(hT0LayerHisto != 0) {
      //  if(debug)
      // cout<<"Filling histo "<<hT0LayerHisto->GetName()<<" with digi "<<t0<<" TDC counts"<<endl;
      hT0LayerHisto->Fill(t0);
    }
      }

      //Use all the remaining events to compute t0 per wire
      if(nevents>eventsForLayerT0){
    // Get the wireId
    const DTWireId wireId(layerId, (*digi).wire());
    if(debug) {
      cout << "   Wire: " << wireId << endl
           << "       time (TDC counts): " << (*digi).countsTDC()<< endl;
    }   

    //Fill the histos per wire for the chosen cells
    vector<DTWireId>::iterator it = find(wireIdWithHistos.begin(),wireIdWithHistos.end(),wireId);
    if (it!=wireIdWithHistos.end()){
      //Get the per-wire histo from the map
      TH1I *hT0WireHisto = theHistoWireMap[wireId]; 
      //If it doesn't exist, book it
      if(hT0WireHisto == 0){
        theFile->cd(); 
        hT0WireHisto = new TH1I(getHistoName(wireId).c_str(),"T0 from pulses by wire (TDC counts, 1 TDC count = 0.781 ns)",7000,0,7000);
        //hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())-100,
        //hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())+100);
        if(debug)
          cout << "  New T0 per wire Histo: " << hT0WireHisto->GetName() << endl;
        theHistoWireMap[wireId] = hT0WireHisto;
      }
      //Fill the histos
      theFile->cd();
      if(hT0WireHisto != 0) {
        //if(debug)
        // cout<<"Filling histo "<<hT0WireHisto->GetName()<<" with digi "<<t0<<" TDC counts"<<endl;
        hT0WireHisto->Fill(t0);
      }
    }

    //Check the tzero has reasonable value
    //float hT0Min = tTrig - 2*tTrigRMS;
    //float hT0Max = hT0Min + timeBoxWidth;
    /*if(abs(hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin()) - t0) > rejectDigiFromPeak){
      if(debug)
        cout<<"digi skipped because t0 per sector "<<hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())<<endl;
      continue;
    }*/
    /*if((t0 < hT0Min)||(t0 > hT0Max)){
          if(debug)
            cout<<"digi skipped because t0 outside of interval (" << hT0Min << "," << hT0Max << ")" <<endl;
          continue;
        }*/
    //Select per layer
    if(fabs(theTPPeakMap[layerId] - t0) > rejectDigiFromPeak){
      if(debug)
            cout<<"digi skipped because t0 too far from peak " << theTPPeakMap[layerId] << endl;
          continue; 
    }

    //Find to ref. per chamber
    theSumT0ByChamber[chamberId] = theSumT0ByChamber[chamberId] + t0;
    theCountT0ByChamber[chamberId]++;

    //Use second bunch of events to compute a t0 reference per wire
    if(nevents< (eventsForLayerT0 + eventsForWireT0)){
      if(!nDigiPerWire_ref[wireId]){
        mK_ref[wireId] = 0;
      }
      nDigiPerWire_ref[wireId] = nDigiPerWire_ref[wireId] + 1;
      mK_ref[wireId] = mK_ref[wireId] + (t0-mK_ref[wireId])/nDigiPerWire_ref[wireId];
    }
    //Use last all the remaining events to compute the mean and sigma t0 per wire
    else if(nevents>(eventsForLayerT0 + eventsForWireT0)){
      if(abs(t0-mK_ref[wireId]) > tpPeakWidth)
        continue;
      if(!nDigiPerWire[wireId]){
        theAbsoluteT0PerWire[wireId] = 0;
        qK[wireId] = 0;
        mK[wireId] = 0;
      }
      nDigiPerWire[wireId] = nDigiPerWire[wireId] + 1;
      theAbsoluteT0PerWire[wireId] = theAbsoluteT0PerWire[wireId] + t0;
      //theSigmaT0PerWire[wireId] = theSigmaT0PerWire[wireId] + (t0*t0);
      qK[wireId] = qK[wireId] + ((nDigiPerWire[wireId]-1)*(t0-mK[wireId])*(t0-mK[wireId])/nDigiPerWire[wireId]);
      mK[wireId] = mK[wireId] + (t0-mK[wireId])/nDigiPerWire[wireId];
    }
      }//end if(nevents>1000)
    }//end loop on digi
  }//end loop on layer

  //Use the t0 per layer histos to have an indication about the t0 position 
  if(nevents == eventsForLayerT0){
    bool increaseEvtsForLayerT0 = false;    
    for(map<DTLayerId, TH1I*>::const_iterator lHisto = theHistoLayerMap.begin();
    lHisto != theHistoLayerMap.end();
    lHisto++){
      if(debug)
    cout<<"Reading histogram "<<(*lHisto).second->GetName()<<" with mean "<<(*lHisto).second->GetMean()<<" and RMS "<<(*lHisto).second->GetRMS() << endl;

      //Find peaks
      //int npeaks = spectrum->Search((*lHisto).second,0.5,"goff");
      //int npeaks = spectrum->Search((*lHisto).second,(tpPeakWidthPerLayer/2.),"goff",0.3);
      int npeaks = spectrum->Search((*lHisto).second,(tpPeakWidthPerLayer/2.),"",0.3);

      float *peaks = spectrum->GetPositionX();  
      //Put in a std::vector<float>
      vector<float> peakMeans(peaks,peaks + npeaks);
      //Sort the peaks in ascending order
      sort(peakMeans.begin(),peakMeans.end());
                
      //Find best peak -- preliminary criteria: find peak closest to center of time box 
      float tTrig,tTrigRMS, kFactor;
      tTrigMap->get((*lHisto).first.superlayerId(), tTrig, tTrigRMS, kFactor, DTTimeUnits::counts );

      float timeBoxCenter = (2*tTrig + (float)timeBoxWidth)/2.; 
      float hMin = (*lHisto).second->GetXaxis()->GetXmin();
      float hMax = (*lHisto).second->GetXaxis()->GetXmax();     
      vector<float>::const_iterator tpPeak = peakMeans.end();
      for(vector<float>::const_iterator it = peakMeans.begin(); it != peakMeans.end(); ++it){
    float mean = *it;

    int bin = (*lHisto).second->GetXaxis()->FindBin(mean);
    float yp = (*lHisto).second->GetBinContent(bin);
    if(debug) cout << "Peak : (" << mean << "," << yp << ")" << endl; 

    //Find RMS
    float previous_peak = (it == peakMeans.begin())?hMin:*(it - 1);
        float next_peak = (it == (peakMeans.end()-1))?hMax:*(it + 1);

    float rangemin = mean - (mean - previous_peak)/8.;
        float rangemax = mean + (next_peak - mean)/8.;
    int binmin = (*lHisto).second->GetXaxis()->FindBin(rangemin);
    int binmax = (*lHisto).second->GetXaxis()->FindBin(rangemax);
    (*lHisto).second->GetXaxis()->SetRange(binmin,binmax);
    //RMS estimate
    float rms_seed = (*lHisto).second->GetRMS();

    /*rangemin = mean - 2*rms_seed;
    rangemax = mean + 2*rms_seed;
    if(debug) cout << "Seed for RMS, Fit min, Fit max: " << rms_seed << ", " << rangemin << ", " << rangemax << endl;
    //Fit to gaussian
    string funcname("fitFcn_");
    funcname += (*lHisto).second->GetName();
    if(debug) cout << "Fitting function " << funcname << endl; 
    TF1* func = new TF1(funcname.c_str(),"gaus",rangemin,rangemax);
    func->SetParameters(yp,mean,rms_seed);
    (*lHisto).second->Fit(func,"Q","",rangemin,rangemax);

    float fitconst = func->GetParameter(0);
    float fitmean = func->GetParameter(1);
    float fitrms = func->GetParameter(2);
    float chisquare = func->GetChisquare()/func->GetNDF();
    if(debug) cout << "Gaussian fit constant,mean,RMS,chi2= " << fitconst << ", " << fitmean << ", " << fitrms << ", " << chisquare << endl;*/

    //Reject peaks with RMS larger than specified
    //if(fitrms > tpPeakWidth) continue;
    if(rms_seed > tpPeakWidthPerLayer) continue;

    if(fabs(mean - timeBoxCenter) < fabs(*tpPeak - timeBoxCenter)) tpPeak = it;
      } 
      //Didn't find peak    
      /*if(tpPeak == peakMeans.end()){
    if(retryForLayerT0 < 2){
      increaseEvtsForLayerT0 = true;
      retryForLayerT0++;
      break;
    } 
      }*/

      float selPeak = (tpPeak != peakMeans.end())?*tpPeak:(*lHisto).second->GetBinCenter((*lHisto).second->GetMaximumBin());        
      if(debug) cout << "Peak selected at " << selPeak << endl;
    
      theTPPeakMap[(*lHisto).first] = selPeak;
        
      //Take the mean as a first t0 estimation
      /*if((*lHisto).second->GetRMS() < tpPeakWidth){
    if(hT0SectorHisto == 0){
      hT0SectorHisto = new TH1D("hT0AllLayerOfSector","T0 from pulses per layer in sector", 
                    //20, (*lHisto).second->GetMean()-100, (*lHisto).second->GetMean()+100);
                    700, 0, 7000);
                    //300,3300,3600);   
    }
    if(debug)
      cout<<" accepted"<<endl;
    //TH1I* aux_histo = (*lHisto).second;
    //aux_histo->GetXaxis()->SetRangeUser(3300,3600);
    hT0SectorHisto->Fill((*lHisto).second->GetMean());
    //hT0SectorHisto->Fill(aux_histo->GetMean());
      }
      //Take the mean of noise + 400ns as a first t0 estimation
      //if((*lHisto).second->GetRMS()>10.0 && ((*lHisto).second->GetRMS()<15.0)){
      //double t0_estim = (*lHisto).second->GetMean() + 400;
      //if(hT0SectorHisto == 0){
      //  hT0SectorHisto = new TH1D("hT0AllLayerOfSector","T0 from pulses per layer in sector", 
      //                //20, t0_estim-100, t0_estim+100);
      //                700, 0, 7000);
      //}
      //if(debug)
      //  cout<<" accepted + 400ns"<<endl;
      //hT0SectorHisto->Fill((*lHisto).second->GetMean() + 400);
      //}
      if(debug)
    cout<<endl;

      theT0LayerMap[(*lHisto).second->GetName()] = (*lHisto).second->GetMean();
      theSigmaT0LayerMap[(*lHisto).second->GetName()] = (*lHisto).second->GetRMS();*/
    }
    /*if(!hT0SectorHisto){
      cout<<"[DTT0CalibrationNew]: All the t0 per layer are still uncorrect: trying with greater number of events"<<endl;
      eventsForLayerT0 = eventsForLayerT0*2;
      return;
    }
    if(debug)
      cout<<"[DTT0CalibrationNew] t0 reference for this sector "<<
    hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin())<<endl;*/
    if(increaseEvtsForLayerT0){
    cout<<"[DTT0CalibrationNew]: t0 per layer are still uncorrect: trying with greater number of events"<<endl;
    eventsForLayerT0 = eventsForLayerT0*2;
    return;
    }       
  } 
}

void DTT0CalibrationNew::endJob ( void  )

virtual

Compute the mean and the RMS of the t0 from the maps and write them to the DB with channel granularity.

Loop on superlayer to correct between even-odd layers (2 different test pulse lines!)

Change t0 absolute reference -> from sector peak to chamber average

Write the t0 map into DB

Reimplemented from edm::EDAnalyzer.

Definition at line 401 of file DTT0CalibrationNew.cc.

References abs, DTT0::begin(), DTTimeUnits::counts, gather_cfg::cout, debug, DTT0::end(), DTT0::set(), mathSSE::sqrt(), interactiveExample::theFile, tzero, and DTCalibDBUtils::writeToDB().

                                {

  DTT0* t0s = new DTT0();
  DTT0* t0sWRTChamber = new DTT0();

  if(debug) 
    cout << "[DTT0CalibrationNewPerLayer]Writing histos to file!" << endl;

  theFile->cd();
  //hT0SectorHisto->Write();
  for(map<DTWireId, TH1I*>::const_iterator wHisto = theHistoWireMap.begin();
      wHisto != theHistoWireMap.end();
      wHisto++) {
    (*wHisto).second->Write(); 
  }
  for(map<DTLayerId, TH1I*>::const_iterator lHisto = theHistoLayerMap.begin();
      lHisto != theHistoLayerMap.end();
      lHisto++) {
    (*lHisto).second->Write(); 
  }  

  if(debug) 
    cout << "[DTT0CalibrationNew] Compute and store t0 and sigma per wire" << endl;

  for(map<DTChamberId,double>::const_iterator chamber = theSumT0ByChamber.begin();
      chamber != theSumT0ByChamber.end();
      ++chamber) theRefT0ByChamber[(*chamber).first] = theSumT0ByChamber[(*chamber).first]/((double)theCountT0ByChamber[(*chamber).first]);
  
  for(map<DTWireId, double>::const_iterator wiret0 = theAbsoluteT0PerWire.begin();
      wiret0 != theAbsoluteT0PerWire.end();
      wiret0++){
    if(nDigiPerWire[(*wiret0).first]){
      double t0 = (*wiret0).second/nDigiPerWire[(*wiret0).first];
      DTChamberId chamberId = ((*wiret0).first).chamberId();
      //theRelativeT0PerWire[(*wiret0).first] = t0 - hT0SectorHisto->GetBinCenter(hT0SectorHisto->GetMaximumBin());
      theRelativeT0PerWire[(*wiret0).first] = t0 - theRefT0ByChamber[chamberId];    
      cout<<"Wire "<<(*wiret0).first<<" has    t0 "<<t0<<"(absolute) "<<theRelativeT0PerWire[(*wiret0).first]<<"(relative)";

      //theSigmaT0PerWire[(*wiret0).first] = sqrt((theSigmaT0PerWire[(*wiret0).first] / nDigiPerWire[(*wiret0).first]) - t0*t0);
      theSigmaT0PerWire[(*wiret0).first] = sqrt(qK[(*wiret0).first]/nDigiPerWire[(*wiret0).first]);
      cout<<"    sigma "<<theSigmaT0PerWire[(*wiret0).first]<<endl;
    }
    else{
      cout<<"[DTT0CalibrationNew] ERROR: no digis in wire "<<(*wiret0).first<<endl;
      abort();
    }
  }

  // Get all the sls from the setup
  const vector<DTSuperLayer*> superLayers = dtGeom->superLayers();     
  // Loop over all SLs
  for(vector<DTSuperLayer*>::const_iterator  sl = superLayers.begin();
      sl != superLayers.end(); sl++) {

  
    //Compute mean for odd and even superlayers
    double oddLayersMean=0;
    double evenLayersMean=0; 
    double oddLayersDen=0;
    double evenLayersDen=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
    wiret0 != theRelativeT0PerWire.end();
    wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
    if(debug)
      cout<<"[DTT0CalibrationNew] Superlayer "<<(*sl)->id()
          <<"layer " <<(*wiret0).first.layerId().layer()<<" with "<<(*wiret0).second<<endl;
    if(((*wiret0).first.layerId().layer()) % 2){
      oddLayersMean = oddLayersMean + (*wiret0).second;
      oddLayersDen++;
    }
    else{
      evenLayersMean = evenLayersMean + (*wiret0).second;
      evenLayersDen++;
    }
      }
    }
    oddLayersMean = oddLayersMean/oddLayersDen;
    evenLayersMean = evenLayersMean/evenLayersDen;
    if(debug && oddLayersMean)
      cout<<"[DTT0CalibrationNew] Relative T0 mean for  odd layers "<<oddLayersMean<<"  even layers"<<evenLayersMean<<endl;

    //Compute sigma for odd and even superlayers
    double oddLayersSigma=0;
    double evenLayersSigma=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
    wiret0 != theRelativeT0PerWire.end();
    wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
    if(((*wiret0).first.layerId().layer()) % 2){
      oddLayersSigma = oddLayersSigma + ((*wiret0).second - oddLayersMean) * ((*wiret0).second - oddLayersMean);
    }
    else{
      evenLayersSigma = evenLayersSigma + ((*wiret0).second - evenLayersMean) * ((*wiret0).second - evenLayersMean);
    }
      }
    }
    oddLayersSigma = oddLayersSigma/oddLayersDen;
    evenLayersSigma = evenLayersSigma/evenLayersDen;
    oddLayersSigma = sqrt(oddLayersSigma);
    evenLayersSigma = sqrt(evenLayersSigma);

    if(debug && oddLayersMean)
      cout<<"[DTT0CalibrationNew] Relative T0 sigma for  odd layers "<<oddLayersSigma<<"  even layers"<<evenLayersSigma<<endl;

    //Recompute the mean for odd and even superlayers discarding fluctations
    double oddLayersFinalMean=0; 
    double evenLayersFinalMean=0;
    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
    wiret0 != theRelativeT0PerWire.end();
    wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
    if(((*wiret0).first.layerId().layer()) % 2){
      if(abs((*wiret0).second - oddLayersMean) < (2*oddLayersSigma))
        oddLayersFinalMean = oddLayersFinalMean + (*wiret0).second;
    }
    else{
      if(abs((*wiret0).second - evenLayersMean) < (2*evenLayersSigma))
        evenLayersFinalMean = evenLayersFinalMean + (*wiret0).second;
    }
      }
    }
    oddLayersFinalMean = oddLayersFinalMean/oddLayersDen;
    evenLayersFinalMean = evenLayersFinalMean/evenLayersDen;
    if(debug && oddLayersMean)
      cout<<"[DTT0CalibrationNew] Final relative T0 mean for  odd layers "<<oddLayersFinalMean<<"  even layers"<<evenLayersFinalMean<<endl;

    for(map<DTWireId, double>::const_iterator wiret0 = theRelativeT0PerWire.begin();
    wiret0 != theRelativeT0PerWire.end();
    wiret0++){
      if((*wiret0).first.layerId().superlayerId() == (*sl)->id()){
    double t0=-999;
    if(((*wiret0).first.layerId().layer()) % 2)
      t0 = (*wiret0).second + (evenLayersFinalMean - oddLayersFinalMean);
    else
      t0 = (*wiret0).second;

    cout<<"[DTT0CalibrationNew] Wire "<<(*wiret0).first<<" has    t0 "<<(*wiret0).second<<" (relative, after even-odd layer corrections)  "
        <<"    sigma "<<theSigmaT0PerWire[(*wiret0).first]<<endl;
    //Store the results into DB
    t0s->set((*wiret0).first, t0, theSigmaT0PerWire[(*wiret0).first],DTTimeUnits::counts); 
      }
    }
  }
  
  if(debug) 
    cout << "[DTT0CalibrationNew]Computing relative t0 wrt to chamber average" << endl;
  //Compute the reference for each chamber
  map<DTChamberId,double> sumT0ByChamber;
  map<DTChamberId,int> countT0ByChamber;
  for(DTT0::const_iterator tzero = t0s->begin();
      tzero != t0s->end(); tzero++) {
    DTChamberId chamberId((*tzero).first.wheelId,
              (*tzero).first.stationId,
              (*tzero).first.sectorId);
    sumT0ByChamber[chamberId] = sumT0ByChamber[chamberId] + (*tzero).second.t0mean;
    countT0ByChamber[chamberId]++;
  }

  //Change reference for each wire and store the new t0s in the new map
  for(DTT0::const_iterator tzero = t0s->begin();
      tzero != t0s->end(); tzero++) {
    DTChamberId chamberId((*tzero).first.wheelId,
              (*tzero).first.stationId,
              (*tzero).first.sectorId);
    double t0mean = ((*tzero).second.t0mean) - (sumT0ByChamber[chamberId]/countT0ByChamber[chamberId]);
    double t0rms = (*tzero).second.t0rms;
    DTWireId wireId((*tzero).first.wheelId,
            (*tzero).first.stationId,
            (*tzero).first.sectorId,
            (*tzero).first.slId,
            (*tzero).first.layerId,
            (*tzero).first.cellId);
    t0sWRTChamber->set(wireId,
               t0mean,
               t0rms,
               DTTimeUnits::counts);
    if(debug){
      //cout<<"Chamber "<<chamberId<<" has reference "<<(sumT0ByChamber[chamberId]/countT0ByChamber[chamberId]);
      cout<<"Changing t0 of wire "<<wireId<<" from "<<(*tzero).second.t0mean<<" to "<<t0mean<<endl;
    }
  }

  if(debug) 
   cout << "[DTT0CalibrationNew]Writing values in DB!" << endl;
  // FIXME: to be read from cfg?
  string t0Record = "DTT0Rcd";
  // Write the t0 map to DB
  DTCalibDBUtils::writeToDB(t0Record, t0sWRTChamber);
}

string DTT0CalibrationNew::getHistoName ( const DTWireId &  wId ) const

private

Definition at line 595 of file DTT0CalibrationNew.cc.

References DTLayerId::layer(), DTChamberId::sector(), DTChamberId::station(), DTSuperLayerId::superlayer(), DTChamberId::wheel(), and DTWireId::wire().

                                                                 {
  string histoName;
  stringstream theStream;
  theStream << "Ch_" << wId.wheel() << "_" << wId.station() << "_" << wId.sector()
        << "_SL" << wId.superlayer() << "_L" << wId.layer() << "_W"<< wId.wire() <<"_hT0Histo";
  theStream >> histoName;
  return histoName;
}

string DTT0CalibrationNew::getHistoName ( const DTLayerId &  lId ) const

private

Definition at line 604 of file DTT0CalibrationNew.cc.

References DTLayerId::layer(), DTChamberId::sector(), DTChamberId::station(), DTSuperLayerId::superlayer(), and DTChamberId::wheel().

                                                                  {
  string histoName;
  stringstream theStream;
  theStream << "Ch_" << lId.wheel() << "_" << lId.station() << "_" << lId.sector()
        << "_SL" << lId.superlayer() << "_L" << lId.layer() <<"_hT0Histo";
  theStream >> histoName;
  return histoName;
}

Member Data Documentation

std::vector<std::string> DTT0CalibrationNew::cellsWithHistos

private

Definition at line 104 of file DTT0CalibrationNew.h.

std::string DTT0CalibrationNew::dbLabel

private

Definition at line 61 of file DTT0CalibrationNew.h.

bool DTT0CalibrationNew::debug

private

Definition at line 56 of file DTT0CalibrationNew.h.

std::string DTT0CalibrationNew::digiLabel

private

Definition at line 59 of file DTT0CalibrationNew.h.

edm::ESHandle<DTGeometry> DTT0CalibrationNew::dtGeom

private

Definition at line 127 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::eventsForLayerT0

private

Definition at line 71 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::eventsForWireT0

private

Definition at line 73 of file DTT0CalibrationNew.h.

TH1D* DTT0CalibrationNew::hT0SectorHisto

private

Definition at line 98 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::mK

private

Definition at line 112 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::mK_ref

private

Definition at line 113 of file DTT0CalibrationNew.h.

std::map<DTWireId,int> DTT0CalibrationNew::nDigiPerWire

private

Definition at line 110 of file DTT0CalibrationNew.h.

std::map<DTWireId,int> DTT0CalibrationNew::nDigiPerWire_ref

private

Definition at line 111 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::nevents

private

Definition at line 69 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::qK

private

Definition at line 114 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::rejectDigiFromPeak

private

Definition at line 85 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::retryForLayerT0

private

Definition at line 87 of file DTT0CalibrationNew.h.

int DTT0CalibrationNew::selSector

private

Definition at line 93 of file DTT0CalibrationNew.h.

int DTT0CalibrationNew::selWheel

private

Definition at line 91 of file DTT0CalibrationNew.h.

TSpectrum* DTT0CalibrationNew::spectrum

private

Definition at line 100 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::theAbsoluteT0PerWire

private

Definition at line 107 of file DTT0CalibrationNew.h.

std::string DTT0CalibrationNew::theCalibSector

private

Definition at line 92 of file DTT0CalibrationNew.h.

std::string DTT0CalibrationNew::theCalibWheel

private

Definition at line 90 of file DTT0CalibrationNew.h.

std::map<DTChamberId,int> DTT0CalibrationNew::theCountT0ByChamber

private

Definition at line 123 of file DTT0CalibrationNew.h.

TFile* DTT0CalibrationNew::theFile

private

Definition at line 64 of file DTT0CalibrationNew.h.

std::map<DTLayerId, TH1I*> DTT0CalibrationNew::theHistoLayerMap

private

Definition at line 96 of file DTT0CalibrationNew.h.

std::map<DTWireId,TH1I*> DTT0CalibrationNew::theHistoWireMap

private

Definition at line 116 of file DTT0CalibrationNew.h.

TFile* DTT0CalibrationNew::theOutputFile

private

Definition at line 66 of file DTT0CalibrationNew.h.

std::map<DTChamberId,double> DTT0CalibrationNew::theRefT0ByChamber

private

Definition at line 124 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::theRelativeT0PerWire

private

Definition at line 108 of file DTT0CalibrationNew.h.

std::map<std::string,double> DTT0CalibrationNew::theSigmaT0LayerMap

private

Definition at line 119 of file DTT0CalibrationNew.h.

std::map<DTWireId,double> DTT0CalibrationNew::theSigmaT0PerWire

private

Definition at line 109 of file DTT0CalibrationNew.h.

std::map<DTChamberId,double> DTT0CalibrationNew::theSumT0ByChamber

private

Definition at line 122 of file DTT0CalibrationNew.h.

std::map<std::string,double> DTT0CalibrationNew::theT0LayerMap

private

Definition at line 118 of file DTT0CalibrationNew.h.

std::map<DTLayerId,double> DTT0CalibrationNew::theTPPeakMap

private

Definition at line 120 of file DTT0CalibrationNew.h.

unsigned int DTT0CalibrationNew::timeBoxWidth

private

Definition at line 82 of file DTT0CalibrationNew.h.

double DTT0CalibrationNew::tpPeakWidth

private

Definition at line 76 of file DTT0CalibrationNew.h.

double DTT0CalibrationNew::tpPeakWidthPerLayer

private

Definition at line 79 of file DTT0CalibrationNew.h.

std::vector<DTWireId> DTT0CalibrationNew::wireIdWithHistos

private

Definition at line 103 of file DTT0CalibrationNew.h.