#include <DTTTrigResidualCorrection.h>

Inheritance diagram for DTTTrigResidualCorrection:

Public Member Functions
virtual DTTTrigData	correction (const DTSuperLayerId &)

	DTTTrigResidualCorrection (const edm::ParameterSet &)

virtual void	setES (const edm::EventSetup &setup)

virtual	~DTTTrigResidualCorrection ()

Public Member Functions inherited from DTTTrigBaseCorrection
	DTTTrigBaseCorrection ()

virtual	~DTTTrigBaseCorrection ()

Private Member Functions
const TH1F *	getHisto (const DTSuperLayerId &)

std::string	getHistoName (const DTSuperLayerId &slID)

Private Attributes
std::string	dbLabel_

DTResidualFitter *	fitter_

const DTMtime *	mTimeMap_

std::string	rootBaseDir_

TFile *	rootFile_

const DTTtrig *	tTrigMap_

bool	useFit_

bool	useSlopesCalib_

double	vDriftEff_ [5][14][4][3]

Detailed Description

Concrete implementation of a DTTTrigBaseCorrection. Computes residual correction for tTrig

Revision:: 1.5

Author: A. Vilela Pereira

Definition at line 27 of file DTTTrigResidualCorrection.h.

Constructor & Destructor Documentation

DTTTrigResidualCorrection::DTTTrigResidualCorrection ( const edm::ParameterSet & pset )

Definition at line 42 of file DTTTrigResidualCorrection.cc.

References debug, edm::FileInPath::fullPath(), edm::ParameterSet::getParameter(), and edm::ParameterSet::getUntrackedParameter().

                                                                              {
   string residualsRootFile = pset.getParameter<string>("residualsRootFile");
   rootFile_ = new TFile(residualsRootFile.c_str(),"READ");
   rootBaseDir_ = pset.getUntrackedParameter<string>("rootBaseDir","/DQMData/DT/DTCalibValidation"); 
   useFit_ = pset.getParameter<bool>("useFitToResiduals");
   //useConstantvDrift_ = pset.getParameter<bool>("useConstantDriftVelocity");
   dbLabel_  = pset.getUntrackedParameter<string>("dbLabel", "");
   useSlopesCalib_ = pset.getUntrackedParameter<bool>("useSlopesCalib",false);
 
   // Load external slopes
   if(useSlopesCalib_){ 
      ifstream fileSlopes; 
      fileSlopes.open( pset.getParameter<FileInPath>("slopesFileName").fullPath().c_str() );
 
      int tmp_wheel = 0, tmp_sector = 0, tmp_station = 0, tmp_SL = 0;
      double tmp_ttrig = 0., tmp_t0 = 0., tmp_kfact = 0.;
      int tmp_a = 0, tmp_b = 0, tmp_c = 0, tmp_d = 0;
      double tmp_v_eff = 0.;
      while(!fileSlopes.eof()){
         fileSlopes >> tmp_wheel >> tmp_sector >> tmp_station >> tmp_SL  >> tmp_a >> tmp_b >>
                       tmp_ttrig >> tmp_t0 >> tmp_kfact >> tmp_c >> tmp_d >> tmp_v_eff;
         vDriftEff_[tmp_wheel+2][tmp_sector-1][tmp_station-1][tmp_SL-1] = -tmp_v_eff;
      }
      fileSlopes.close();
   } 
 
   bool debug = pset.getUntrackedParameter<bool>("debug",false);
   fitter_ = new DTResidualFitter(debug);
 }

DTTTrigResidualCorrection::~DTTTrigResidualCorrection ( )

virtual

Definition at line 72 of file DTTTrigResidualCorrection.cc.

                                                       {
   delete rootFile_;
   delete fitter_;
 }

Member Function Documentation

DTTTrigData DTTTrigResidualCorrection::correction ( const DTSuperLayerId & slId )

virtual

Implements DTTTrigBaseCorrection.

Definition at line 91 of file DTTTrigResidualCorrection.cc.

References DTVelocityUnits::cm_per_ns, edm::hlt::Exception, DTResidualFitResult::fitMean, DTResidualFitResult::fitSigma, cropTnPTrees::frac, getHisto(), LogTrace, timingPdfMaker::mean, DTTimeUnits::ns, DTChamberId::sector(), DTChamberId::station(), relativeConstraints::station, ntuplemaker::status, DTSuperLayerId::superLayer(), DTChamberId::wheel(), and x.

                                                                             {
 
   float tTrigMean,tTrigSigma,kFactor;
   int status = tTrigMap_->get(slId,tTrigMean,tTrigSigma,kFactor,DTTimeUnits::ns);
   if(status != 0) throw cms::Exception("[DTTTrigResidualCorrection]") << "Could not find tTrig entry in DB for"
                                                                       << slId << endl;
 
   float vDrift,hitResolution;
   status = mTimeMap_->get(slId,vDrift,hitResolution,DTVelocityUnits::cm_per_ns);
   if(status != 0) throw cms::Exception("[DTTTrigResidualCorrection]") << "Could not find vDrift entry in DB for"
                                                                       << slId << endl;
   TH1F residualHisto = *(getHisto(slId));
   LogTrace("Calibration") << "[DTTTrigResidualCorrection]: \n"
                           << "   Mean, RMS     = " << residualHisto.GetMean() << ", " << residualHisto.GetRMS();
 
   double fitMean = -1.;
   double fitSigma = -1.;
   if(useFit_){
     LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Fitting histogram " << residualHisto.GetName(); 
     const bool originalFit = false; // FIXME: Include this option in fitter class
     if(originalFit){
        RooRealVar x("x","residual",-1.,1.);
        RooRealVar mean("mean","mean",residualHisto.GetMean(),-0.3,0.3);
        RooRealVar sigma1("sigma1","sigma1",0.,0.5);
        RooRealVar sigma2("sigma2","sigma2",0.,0.5);
 
        RooRealVar frac("frac","frac",0.,1.);
 
        RooGaussian myg1("myg1","Gaussian distribution",x,mean,sigma1);
        RooGaussian myg2("myg2","Gaussian distribution",x,mean,sigma2);
 
        RooAddPdf myg("myg","myg",RooArgList(myg1,myg2),RooArgList(frac));
 
        RooDataHist hdata("hdata","Binned data",RooArgList(x),&residualHisto);
        myg.fitTo(hdata,RooFit::Minos(0),RooFit::Range(-0.2,0.2));
 
        fitMean = mean.getVal();
        fitSigma = sigma1.getVal();
     } else{
        int nSigmas = 2;
        DTResidualFitResult fitResult = fitter_->fitResiduals(residualHisto,nSigmas);
        fitMean = fitResult.fitMean;
        fitSigma = fitResult.fitSigma;  
     }
     LogTrace("Calibration") << "[DTTTrigResidualCorrection]: \n"
                             << "   Fit Mean      = " << fitMean << "\n"
                             << "   Fit Sigma     = " << fitSigma;
   }
   double resMean = (useFit_) ? fitMean : residualHisto.GetMean();
 
   int wheel = slId.wheel();
   int sector = slId.sector();
   int station = slId.station();
   int superLayer = slId.superLayer();
   double resTime = 0.;
   if(useSlopesCalib_){
      double vdrift_eff = vDriftEff_[wheel+2][sector-1][station-1][superLayer-1];
      if(vdrift_eff == 0) vdrift_eff = vDrift;
 
      if(vdrift_eff) resTime = resMean/vdrift_eff;
 
      LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Effective vDrift, correction to tTrig = "
                              << vdrift_eff << ", " << resTime;
   } else{
      if(vDrift) resTime = resMean/vDrift;
 
      LogTrace("Calibration") << "[DTTTrigResidualCorrection]: vDrift from DB, correction to tTrig = "
                              << vDrift << ", " << resTime;
   }
  
   double corrMean = tTrigMean;
   double corrSigma = (tTrigSigma != 0.) ? tTrigSigma : 1.;
   double corrKFact = (tTrigSigma != 0.) ? (kFactor + resTime/tTrigSigma) : resTime;
 
   return DTTTrigData(corrMean,corrSigma,corrKFact);  
 }

const TH1F * DTTTrigResidualCorrection::getHisto ( const DTSuperLayerId & slId )

private

Definition at line 168 of file DTTTrigResidualCorrection.cc.

References edm::hlt::Exception, mergeVDriftHistosByStation::getHistoName(), interpolateCardsSimple::histo, and LogTrace.

                                                                           {
   string histoName = getHistoName(slId);
   LogTrace("Calibration") << "[DTTTrigResidualCorrection]: Accessing histogram " << histoName.c_str();
   TH1F* histo = static_cast<TH1F*>(rootFile_->Get(histoName.c_str()));
   if(!histo) throw cms::Exception("[DTTTrigResidualCorrection]") << "residual histogram not found:"
                                                                  << histoName << endl; 
   return histo;
 }

string DTTTrigResidualCorrection::getHistoName ( const DTSuperLayerId & slID )

private

Definition at line 177 of file DTTTrigResidualCorrection.cc.

References DTChamberId::sector(), DTChamberId::station(), relativeConstraints::station, launcher::step, cmsPerfCommons::Step, DTSuperLayerId::superlayer(), and DTChamberId::wheel().

                                                                          {
 
   int step = 3;
   stringstream wheel; wheel << slId.wheel();    
   stringstream station; station << slId.station();  
   stringstream sector; sector << slId.sector(); 
   stringstream superLayer; superLayer << slId.superlayer();
   stringstream Step; Step << step;
 
   string histoName =
     rootBaseDir_ + "/Wheel" + wheel.str() + 
     "/Station" + station.str() +
     "/Sector" + sector.str() +
     "/hResDist_STEP" + Step.str() +
     "_W" + wheel.str() +
     "_St" + station.str() +
     "_Sec" + sector.str() +
     "_SL" + superLayer.str();
 
   return histoName;
 }

void DTTTrigResidualCorrection::setES ( const edm::EventSetup & setup )

virtual

Implements DTTTrigBaseCorrection.

Definition at line 77 of file DTTTrigResidualCorrection.cc.

References edm::EventSetup::get().

                                                              {
   // Get tTrig record from DB
   ESHandle<DTTtrig> tTrig;
   //setup.get<DTTtrigRcd>().get(tTrig);
   setup.get<DTTtrigRcd>().get(dbLabel_,tTrig);
   tTrigMap_ = &*tTrig;
 
   // Get vDrift record
   ESHandle<DTMtime> mTimeHandle;
   setup.get<DTMtimeRcd>().get(mTimeHandle);
   mTimeMap_ = &*mTimeHandle;
 
 }