#include <TMath.h>
#include <TF1.h>
#include <TGraph.h>
+#include <THnBase.h>
#include <AliVTrack.h>
#include <AliVCluster.h>
#include <AliLog.h>
#include <AliExternalTrackParam.h>
#include <AliPIDResponse.h>
+#include <AliTRDPIDResponse.h>
#include <AliESDtrack.h> //!!!!! Remove once Eta correction is treated in the tender
+#include <AliAODTrack.h>
+#include <AliAODPid.h>
#include "AliDielectronVarManager.h"
+#include "AliDielectronVarCuts.h"
#include "AliDielectronPID.h"
ClassImp(AliDielectronPID)
-TGraph *AliDielectronPID::fgFitCorr=0x0;
+TGraph *AliDielectronPID::fgFitCorr=0x0;
Double_t AliDielectronPID::fgCorr=0.0;
Double_t AliDielectronPID::fgCorrdEdx=1.0;
-TF1 *AliDielectronPID::fgFunEtaCorr=0x0;
-TGraph *AliDielectronPID::fgdEdxRunCorr=0x0;
+TF1 *AliDielectronPID::fgFunEtaCorr=0x0;
+TH1 *AliDielectronPID::fgFunCntrdCorr=0x0;
+TH1 *AliDielectronPID::fgFunWdthCorr=0x0;
+TGraph *AliDielectronPID::fgdEdxRunCorr=0x0;
AliDielectronPID::AliDielectronPID() :
AliAnalysisCuts(),
+ fUsedVars(new TBits(AliDielectronVarManager::kNMaxValues)),
fNcuts(0),
fPIDResponse(0x0)
{
fFunLowerCut[icut]=0x0;
fRequirePIDbit[icut]=0;
fActiveCuts[icut]=-1;
+ fSigmaFunLow[icut]=0;
+ fSigmaFunUp[icut]=0;
+ fFunSigma[icut]=0x0;
+ fVarCuts[icut]=0x0;
+ fMapElectronCutLow[icut]=0x0;
}
}
//______________________________________________
AliDielectronPID::AliDielectronPID(const char* name, const char* title) :
AliAnalysisCuts(name, title),
+ fUsedVars(new TBits(AliDielectronVarManager::kNMaxValues)),
fNcuts(0),
fPIDResponse(0x0)
{
fFunLowerCut[icut]=0x0;
fRequirePIDbit[icut]=0;
fActiveCuts[icut]=0;
+ fSigmaFunLow[icut]=0;
+ fSigmaFunUp[icut]=0;
+ fFunSigma[icut]=0x0;
+ fVarCuts[icut]=0x0;
+ fMapElectronCutLow[icut]=0x0;
}
}
//
// Default Destructor
//
+ if (fUsedVars) delete fUsedVars;
}
//______________________________________________
fmax[fNcuts]=max;
fExclude[fNcuts]=exclude;
fRequirePIDbit[fNcuts]=pidBitType;
- fActiveCuts[fNcuts]=(var==-1 ? AliDielectronVarManager::kP : var);
+ if(var==-1) var=AliDielectronVarManager::kP; // set default
+ fActiveCuts[fNcuts]=var;
+ fUsedVars->SetBitNumber(var,kTRUE);
- // AliInfo(Form("Add PID cut %d: sigma [% .1f,% .1f] \t cut [% .1f,% .f] \t var %d->%s \n",
- // fNcuts,nSigmaLow,nSigmaUp,min,max,fActiveCuts[fNcuts],AliDielectronVarManager::GetValueName(fActiveCuts[fNcuts])));
+ AliDebug(1,Form("Add PID cut %d: sigma [% .1f,% .1f] \t cut [% .1f,% .f] \t var %d->%s \n",
+ fNcuts,nSigmaLow,nSigmaUp,min,max,fActiveCuts[fNcuts],AliDielectronVarManager::GetValueName(fActiveCuts[fNcuts])));
++fNcuts;
AddCut(det,type,0.,0.,min,max,exclude,pidBitType,var);
}
+//______________________________________________
+void AliDielectronPID::AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp,
+ Double_t min, Double_t max, Bool_t exclude,
+ UInt_t pidBitType, TF1 * const funSigma)
+{
+ //
+ // cut using a TF1 as lower cut
+ //
+ if (funSigma==0x0){
+ AliError("A valid function is required for the sigma cut. Not adding the cut!");
+ return;
+ }
+ fFunSigma[fNcuts]=funSigma;
+ fSigmaFunLow[fNcuts]=min;
+ fSigmaFunUp[fNcuts]=max;
+
+ AddCut(det,type,nSigmaLow,nSigmaUp,0,0,exclude,pidBitType,-1);
+}
+
+//______________________________________________
+void AliDielectronPID::AddCut(DetType det, AliPID::EParticleType type, THnBase * const histLow, Double_t nSigmaUp,
+ Double_t min/*=0*/, Double_t max/*=0*/, Bool_t exclude/*=kFALSE*/,
+ UInt_t pidBitType/*=AliDielectronPID::kRequire*/, Int_t var/*=-1*/)
+{
+ //
+ // cut using a THnBase as a lower cut
+ //
+ if(histLow==0x0){
+ AliError("A valid histogram is required for the lower cut. Not adding the cut!");
+ return;
+ }
+ fMapElectronCutLow[fNcuts]=histLow;
+ // fill used variables into map
+ for(Int_t idim=0; idim<fMapElectronCutLow[fNcuts]->GetNdimensions(); idim++) {
+ TString vari(fMapElectronCutLow[fNcuts]->GetAxis(idim)->GetName());
+ fUsedVars->SetBitNumber(AliDielectronVarManager::GetValueType(vari.Data()), kTRUE);
+ }
+ AddCut(det,type,0.,nSigmaUp,min,max,exclude,pidBitType,var);
+}
+//______________________________________________
+void AliDielectronPID::AddCut(DetType det, AliPID::EParticleType type, Double_t nSigmaLow, Double_t nSigmaUp,
+ AliDielectronVarCuts *var, Bool_t exclude/*=kFALSE*/,
+ UInt_t pidBitType/*=AliDielectronPID::kRequire*/)
+{
+ //
+ // Add a pid nsigma cut
+ // use response of detector 'det' in the ranges for variables defined in var
+ // use a sigma band between 'nSigmaLow' and 'nSigmaUp'
+ // if nSigmaUp==-99999. then nSigmaLow will be uesd as a symmetric band +- nSigmaLow
+ // specify whether to 'exclude' the given band
+ //
+ if(!var) return;
+ if (fNcuts>=kNmaxPID){
+ AliError(Form("only %d pid cut ranges allowed",kNmaxPID));
+ return;
+ }
+ if (TMath::Abs(nSigmaUp+99999.)<1e-20){
+ nSigmaUp=TMath::Abs(nSigmaLow);
+ nSigmaLow=-1.*nSigmaUp;
+ }
+ fDetType[fNcuts]=det;
+ fPartType[fNcuts]=type;
+ fNsigmaLow[fNcuts]=nSigmaLow;
+ fNsigmaUp[fNcuts]=nSigmaUp;
+ fExclude[fNcuts]=exclude;
+ fRequirePIDbit[fNcuts]=pidBitType;
+ fVarCuts[fNcuts]=var;
+
+ AliDebug(1,Form("Add PID cut %d: sigma [% .1f,% .1f] \n",
+ fNcuts,nSigmaLow,nSigmaUp));
+
+ ++fNcuts;
+
+}
+
//______________________________________________
Bool_t AliDielectronPID::IsSelected(TObject* track)
{
//loop over all cuts
AliVTrack *part=static_cast<AliVTrack*>(track);
AliESDtrack *esdTrack=0x0;
+ AliAODTrack *aodTrack=0x0;
Double_t origdEdx=-1;
// apply ETa correction, remove once this is in the tender
- if( (part->IsA() == AliESDtrack::Class()) && fgFunEtaCorr ){
+ if( (part->IsA() == AliESDtrack::Class()) ){
esdTrack=static_cast<AliESDtrack*>(part);
origdEdx=esdTrack->GetTPCsignal();
esdTrack->SetTPCsignal(origdEdx/GetEtaCorr(esdTrack)/fgCorrdEdx,esdTrack->GetTPCsignalSigma(),esdTrack->GetTPCsignalN());
+ } else if ( (part->IsA() == AliAODTrack::Class()) ){
+ aodTrack=static_cast<AliAODTrack*>(track);
+ AliAODPid *pid=const_cast<AliAODPid*>(aodTrack->GetDetPid());
+ if (pid){
+ origdEdx=pid->GetTPCsignal();
+ pid->SetTPCsignal(origdEdx/GetEtaCorr(aodTrack)/fgCorrdEdx);
+ }
+ }
+
+ // check for corrections and add their variables to the fill map
+ if(fgFunCntrdCorr) {
+ fUsedVars->SetBitNumber(fgFunCntrdCorr->GetXaxis()->GetUniqueID(), kTRUE);
+ fUsedVars->SetBitNumber(fgFunCntrdCorr->GetYaxis()->GetUniqueID(), kTRUE);
+ fUsedVars->SetBitNumber(fgFunCntrdCorr->GetZaxis()->GetUniqueID(), kTRUE);
+ }
+ if(fgFunWdthCorr) {
+ fUsedVars->SetBitNumber(fgFunWdthCorr->GetXaxis()->GetUniqueID(), kTRUE);
+ fUsedVars->SetBitNumber(fgFunWdthCorr->GetYaxis()->GetUniqueID(), kTRUE);
+ fUsedVars->SetBitNumber(fgFunWdthCorr->GetZaxis()->GetUniqueID(), kTRUE);
}
-
//Fill values
Double_t values[AliDielectronVarManager::kNMaxValues];
+ AliDielectronVarManager::SetFillMap(fUsedVars);
AliDielectronVarManager::Fill(track,values);
Bool_t selected=kFALSE;
Double_t min=fmin[icut];
Double_t max=fmax[icut];
Double_t val=values[fActiveCuts[icut]];
-
+
// test var range. In case min==max do not cut
- if ( (TMath::Abs(min-max)>1e-20) && (val<min || val>=max) ) continue;
-
+ if ( fVarCuts[icut] ) {
+ if ( !fVarCuts[icut]->IsSelected(part) ) continue;
+ }
+ else if ( ( (TMath::Abs(min-max)>1e-20) && (val<min || val>=max) ) ) {
+ continue;
+ }
+
+ // check if fFunSigma is set, then check if 'part' is in sigma range of the function
+ if(fFunSigma[icut]){
+ val= fPIDResponse->NumberOfSigmasTPC(part, fPartType[icut]);
+ if (fPartType[icut]==AliPID::kElectron){
+ val-=fgCorr;
+ }
+ min= fFunSigma[icut]->Eval(part->GetTPCmomentum())+fSigmaFunLow[icut];
+ max= fFunSigma[icut]->Eval(part->GetTPCmomentum())+fSigmaFunUp[icut];
+ if(val<min || val>=max) continue;
+ }
+
switch (fDetType[icut]){
case kITS:
selected = IsSelectedITS(part,icut);
break;
case kTPC:
- selected = IsSelectedTPC(part,icut);
+ selected = IsSelectedTPC(part,icut,values);
break;
case kTRD:
selected = IsSelectedTRD(part,icut);
case kTRDeleEff:
selected = IsSelectedTRDeleEff(part,icut);
break;
+ case kTRDeleEff2D:
+ selected = IsSelectedTRDeleEff(part,icut,AliTRDPIDResponse::kLQ2D);
+ break;
case kTOF:
selected = IsSelectedTOF(part,icut);
break;
}
if (!selected) {
if (esdTrack) esdTrack->SetTPCsignal(origdEdx,esdTrack->GetTPCsignalSigma(),esdTrack->GetTPCsignalN());
+ else if (aodTrack){
+ AliAODPid *pid=const_cast<AliAODPid*>(aodTrack->GetDetPid());
+ if (pid) pid->SetTPCsignal(origdEdx);
+ }
return kFALSE;
}
}
if (esdTrack) esdTrack->SetTPCsignal(origdEdx,esdTrack->GetTPCsignalSigma(),esdTrack->GetTPCsignalN());
+ else if (aodTrack){
+ AliAODPid *pid=const_cast<AliAODPid*>(aodTrack->GetDetPid());
+ if (pid) pid->SetTPCsignal(origdEdx);
+ }
return selected;
}
// ITS part of the PID check
// Don't accept the track if there was no pid bit set
//
-
- if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&!(part->GetStatus()&AliVTrack::kITSpid)) return kFALSE;
- if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&!(part->GetStatus()&AliVTrack::kITSpid)) return kTRUE;
+ AliPIDResponse::EDetPidStatus pidStatus = fPIDResponse->CheckPIDStatus(AliPIDResponse::kITS,part);
+ if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kFALSE;
+ if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kTRUE;
Double_t mom=part->P();
}
//______________________________________________
-Bool_t AliDielectronPID::IsSelectedTPC(AliVTrack * const part, Int_t icut)
+Bool_t AliDielectronPID::IsSelectedTPC(AliVTrack * const part, Int_t icut, Double_t *values)
{
//
// TPC part of the PID check
// Don't accept the track if there was no pid bit set
//
- if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&!(part->GetStatus()&AliVTrack::kTPCpid)) return kFALSE;
- if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&!(part->GetStatus()&AliVTrack::kTPCpid)) return kTRUE;
+ AliPIDResponse::EDetPidStatus pidStatus = fPIDResponse->CheckPIDStatus(AliPIDResponse::kTPC,part);
+ if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kFALSE;
+ if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kTRUE;
- Double_t mom=part->GetTPCmomentum();
Float_t numberOfSigmas=fPIDResponse->NumberOfSigmasTPC(part, fPartType[icut]);
+ // eta corrections
if (fPartType[icut]==AliPID::kElectron){
+ // old way 1D
numberOfSigmas-=fgCorr;
+ // via functions (1-3D)
+ numberOfSigmas-=GetCntrdCorr(part);
+ numberOfSigmas/=GetWdthCorr(part);
}
-
- // test if we are supposed to use a function for the cut
- if (fFunUpperCut[icut]) fNsigmaUp[icut] =fFunUpperCut[icut]->Eval(mom);
- if (fFunLowerCut[icut]) fNsigmaLow[icut]=fFunLowerCut[icut]->Eval(mom);
-
- Bool_t selected=((numberOfSigmas>=fNsigmaLow[icut])&&(numberOfSigmas<=fNsigmaUp[icut]))^fExclude[icut];
+
+ // matching of MC and data //
+
+ // test if we are supposed to use a function for the cut (matching via fits)
+ if (fFunUpperCut[icut]) fNsigmaUp[icut] =fFunUpperCut[icut]->Eval(values[AliDielectronVarManager::kPIn]);
+ if (fFunLowerCut[icut]) fNsigmaLow[icut]=fFunLowerCut[icut]->Eval(values[AliDielectronVarManager::kPIn]);
+
+ // test if we are using cut maps (in calibrated units)
+ Double_t lowElectronCut = fNsigmaLow[icut];
+ Double_t upElectronCut = fNsigmaUp[icut];
+
+ if((fPartType[icut]==AliPID::kElectron) && (fMapElectronCutLow[icut] )) {
+ Double_t *vals = new Double_t[fMapElectronCutLow[icut]->GetNdimensions()];//={-1};
+ // get array of values for the corresponding dimensions using axis names
+ for(Int_t idim=0; idim<fMapElectronCutLow[icut]->GetNdimensions(); idim++) {
+ vals[idim] = values[AliDielectronVarManager::GetValueType(fMapElectronCutLow[icut]->GetAxis(idim)->GetName())];
+ // printf(" \t %s %.3f ",fMapElectronCutLow[icut]->GetAxis(idim)->GetName(),vals[idim]);
+ }
+ // find bin for values (w/o creating it in case it is not filled)
+ Long_t bin = fMapElectronCutLow[icut]->GetBin(vals,kFALSE);
+ if(bin>0) lowElectronCut=fMapElectronCutLow[icut]->GetBinContent(bin);
+ else lowElectronCut=100;
+ // printf(" low cut %.3f (%ld) \n", lowElectronCut,bin);
+ delete [] vals;
+ }
+
+
+ Bool_t selected=((numberOfSigmas>=lowElectronCut)&&(numberOfSigmas<=upElectronCut))^fExclude[icut];
return selected;
}
// the TRD checks on the probabilities.
//
- if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&!(part->GetStatus()&AliVTrack::kTRDpid)) return kFALSE;
- if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&!(part->GetStatus()&AliVTrack::kTRDpid)) return kTRUE;
+ AliPIDResponse::EDetPidStatus pidStatus = fPIDResponse->CheckPIDStatus(AliPIDResponse::kTRD,part);
+ if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kFALSE;
+ if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kTRUE;
+
if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable && (part->GetTRDntrackletsPID()<4)) return kTRUE;
Double_t p[AliPID::kSPECIES]={0.};
}
//______________________________________________
-Bool_t AliDielectronPID::IsSelectedTRDeleEff(AliVTrack * const part, Int_t icut)
+Bool_t AliDielectronPID::IsSelectedTRDeleEff(AliVTrack * const part, Int_t icut, AliTRDPIDResponse::ETRDPIDMethod PIDmethod)
{
//
// TRD part of the pid check using electron efficiency requirement
// and the lower limit regarded as the requested electron efficiency
//
- if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&!(part->GetStatus()&AliVTrack::kTRDpid)) return kFALSE;
- if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&!(part->GetStatus()&AliVTrack::kTRDpid)) return kTRUE;
+ AliPIDResponse::EDetPidStatus pidStatus = fPIDResponse->CheckPIDStatus(AliPIDResponse::kTRD,part);
+ if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kFALSE;
+ if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kTRUE;
+
+ Double_t centrality = -1.;
+ if(part->IsA() == AliESDtrack::Class())
+ centrality=(const_cast<AliESDEvent*>( (static_cast<const AliESDtrack*>(part))->GetESDEvent()) )->GetCentrality()->GetCentralityPercentile("V0M");
+ if(part->IsA() == AliAODTrack::Class())
+ centrality=(const_cast<AliAODEvent*>( (static_cast<const AliAODTrack*>(part))->GetAODEvent()) )->GetCentrality()->GetCentralityPercentile("V0M");
- Bool_t selected=fPIDResponse->IdentifiedAsElectronTRD(part,fNsigmaLow[icut])^fExclude[icut];
+ Bool_t selected=fPIDResponse->IdentifiedAsElectronTRD(part,fNsigmaLow[icut], centrality, PIDmethod)^fExclude[icut];
return selected;
}
// TOF part of the PID check
// Don't accept the track if there was no pid bit set
//
-
- if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&!(part->GetStatus()&AliVTrack::kTOFpid)) return kFALSE;
- if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&!(part->GetStatus()&AliVTrack::kTOFpid)) return kTRUE;
+ AliPIDResponse::EDetPidStatus pidStatus = fPIDResponse->CheckPIDStatus(AliPIDResponse::kTOF,part);
+ if (fRequirePIDbit[icut]==AliDielectronPID::kRequire&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kFALSE;
+ if (fRequirePIDbit[icut]==AliDielectronPID::kIfAvailable&&(pidStatus!=AliPIDResponse::kDetPidOk)) return kTRUE;
Float_t numberOfSigmas=fPIDResponse->NumberOfSigmasTOF(part, fPartType[icut]);
AddCut(kTPC,AliPID::kElectron,lowerCut,4.);
AddCut(kTOF,AliPID::kElectron,-5,5,0,200,kFALSE,AliDielectronPID::kIfAvailable);
}
+ else if (def==13) {
+ // TPC electron inclusion
+ // TOF electron inclusion if available
+ AddCut(kTOF,AliPID::kElectron,-3.,3.,0,200,kFALSE,AliDielectronPID::kIfAvailable);
+ AddCut(kTPC,AliPID::kElectron,10.);
+ }
+ else if (def==14) {
+ // TRD 1D 90% elec eff, 4-6 tracklets
+ // TPC electron inclusion
+ // TOF electron inclusion if available
+ AddCut(AliDielectronPID::kTRDeleEff,AliPID::kElectron,.9,1.,3.5,6.,kFALSE,
+ AliDielectronPID::kIfAvailable,AliDielectronVarManager::kTRDpidQuality);
+ AddCut(kTOF,AliPID::kElectron,-3.,3.,0,200,kFALSE,AliDielectronPID::kIfAvailable);
+ AddCut(kTPC,AliPID::kElectron,10.);
+ }
+ else if (def==15) {
+ // TRD 1D 90% elec eff, 4-6 tracklets, chi2 < 2
+ // TPC electron inclusion
+ // TOF electron inclusion if available
+ AddCut(AliDielectronPID::kTRDeleEff,AliPID::kElectron,.9,1.,3.5,6.,kFALSE,
+ AliDielectronPID::kIfAvailable,AliDielectronVarManager::kTRDpidQuality);
+ AddCut(AliDielectronPID::kTRDeleEff,AliPID::kElectron,.9,1.,0.,2.,kFALSE,
+ AliDielectronPID::kIfAvailable,AliDielectronVarManager::kTRDchi2);
+ AddCut(kTOF,AliPID::kElectron,-3.,3.,0,200,kFALSE,AliDielectronPID::kIfAvailable);
+ AddCut(kTPC,AliPID::kElectron,10.);
+ }
+ else if (def==16) {
+ // TPC electron inclusion
+ // TOF electron inclusion if available
+ AddCut(kTOF,AliPID::kElectron,-3.,3.,0,200,kFALSE,AliDielectronPID::kIfAvailable);
+ AddCut(kTPC,AliPID::kElectron,-3.5,+3.5);
+ }
}
if (fgdEdxRunCorr){
fgCorrdEdx=fgdEdxRunCorr->Eval(run);
if (run<fgdEdxRunCorr->GetX()[0]) fgCorrdEdx=fgdEdxRunCorr->GetY()[0];
- if (run>fgdEdxRunCorr->GetX()[fgFitCorr->GetN()-1]) fgCorrdEdx=fgdEdxRunCorr->GetY()[fgdEdxRunCorr->GetN()-1];
+ if (run>fgdEdxRunCorr->GetX()[fgdEdxRunCorr->GetN()-1]) fgCorrdEdx=fgdEdxRunCorr->GetY()[fgdEdxRunCorr->GetN()-1];
}
}
//______________________________________________
-Double_t AliDielectronPID::GetEtaCorr(AliVTrack *track)
+Double_t AliDielectronPID::GetEtaCorr(const AliVTrack *track)
{
//
// return eta correction
if (!fgFunEtaCorr) return 1;
return fgFunEtaCorr->Eval(track->Eta());
}
+
+//______________________________________________
+Double_t AliDielectronPID::GetPIDCorr(const AliVTrack *track, TH1 *hist)
+{
+ //
+ // return correction value
+ //
+ //TODO: think about taking an values array as argument to reduce # var fills
+
+ //Fill only event and vparticle values (otherwise we end up in a circle)
+ Double_t values[AliDielectronVarManager::kNMaxValues];
+ AliDielectronVarManager::FillVarVParticle(track,values);
+
+ TF1 *fun = (TF1*)hist->GetListOfFunctions()->At(0);
+ Int_t dim=(fun?fun->GetNdim():hist->GetDimension());
+
+ Double_t var[3] = {0.,0.,0.};
+ if(dim>0) var[0] = values[hist->GetXaxis()->GetUniqueID()];
+ if(dim>1) var[1] = values[hist->GetYaxis()->GetUniqueID()];
+ if(dim>2) var[2] = values[hist->GetZaxis()->GetUniqueID()];
+ Double_t corr = 0.0;
+ if(fun) corr = fun->Eval(var[0],var[1],var[2]);
+ else corr = hist->GetBinContent( hist->FindFixBin(var[0],var[1],var[2]) );
+ // for(Int_t i=0;i<dim;i++) printf("%d:%.3f ",i,var[i]);
+ // printf("%d-dim CORR value: %f (track %p) \n",dim,corr,track);
+ return corr;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff