[u/mrichter/AliRoot.git] / PWG4 / JetTasks / AliAnalysisHelperJetTasks.cxx


#include "TROOT.h"
#include "TKey.h"
#include "TList.h"
#include "TSystem.h"
#include "TH1F.h"
#include "TProfile.h"
#include "THnSparse.h"
#include "TFile.h"
#include "TString.h"
#include "AliMCEvent.h"
#include "AliLog.h"
#include "AliAODJet.h"
#include "AliStack.h"
#include "AliGenEventHeader.h"
#include "AliGenCocktailEventHeader.h"
#include "AliGenPythiaEventHeader.h"
#include <fstream>
#include <iostream>
#include "AliAnalysisHelperJetTasks.h"


ClassImp(AliAnalysisHelperJetTasks)


AliGenPythiaEventHeader*  AliAnalysisHelperJetTasks::GetPythiaEventHeader(AliMCEvent *mcEvent){
  
  AliGenEventHeader* genHeader = mcEvent->GenEventHeader();
  AliGenPythiaEventHeader* pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(genHeader);
  if(!pythiaGenHeader){
    // cocktail ??
    AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(genHeader);
    
    if (!genCocktailHeader) {
      AliWarningGeneral(Form(" %s:%d",(char*)__FILE__,__LINE__),"Unknown header type (not Pythia or Cocktail)");
      //      AliWarning(Form("%s %d: Unknown header type (not Pythia or Cocktail)",(char*)__FILE__,__LINE__));
      return 0;
    }
    TList* headerList = genCocktailHeader->GetHeaders();
    for (Int_t i=0; i<headerList->GetEntries(); i++) {
      pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(headerList->At(i));
      if (pythiaGenHeader)
        break;
    }
    if(!pythiaGenHeader){
      AliWarningGeneral(Form(" %s:%d",(char*)__FILE__,__LINE__),"Pythia event header not found");
      return 0;
    }
  }
  return pythiaGenHeader;

}


void AliAnalysisHelperJetTasks::PrintStack(AliMCEvent *mcEvent,Int_t iFirst,Int_t iLast,Int_t iMaxPrint){

  AliStack *stack = mcEvent->Stack();
  if(!stack){
    Printf("%s%d No Stack available",(char*)__FILE__,__LINE__);
    return;
  }

  static Int_t iCount = 0;
  if(iCount>iMaxPrint)return;
  Int_t nStack = stack->GetNtrack();
  if(iLast == 0)iLast = nStack;
  else if(iLast > nStack)iLast = nStack;


  Printf("####################################################################");
  for(Int_t np = iFirst;np<iLast;++np){
    TParticle *p = stack->Particle(np);
    Printf("Nr.%d --- Status %d ---- Mother1 %d Mother2 %d Daughter1 %d Daughter2 %d ",
	   np,p->GetStatusCode(),p->GetMother(0),p->GetMother(1),p->GetDaughter(0),p->GetDaughter(1));
    Printf("Eta %3.3f Phi %3.3f ",p->Eta(),p->Phi()); 
    p->Print();    
    Printf("---------------------------------------");
  }
  iCount++;
}


void AliAnalysisHelperJetTasks::GetClosestJets(AliAODJet *genJets,const Int_t &kGenJets,
					       AliAODJet *recJets,const Int_t &kRecJets,
					       Int_t *iGenIndex,Int_t *iRecIndex,
					       Int_t iDebug,Float_t maxDist){

  //
  // Relate the two input jet Arrays
  //

  //
  // The association has to be unique
  // So check in two directions
  // find the closest rec to a gen
  // and check if there is no other rec which is closer
  // Caveat: Close low energy/split jets may disturb this correlation


  // Idea: search in two directions generated e.g (a--e) and rec (1--3)
  // Fill a matrix with Flags (1 for closest rec jet, 2 for closest rec jet
  // in the end we have something like this
  //    1   2   3
  // ------------
  // a| 3   2   0
  // b| 0   1   0
  // c| 0   0   3
  // d| 0   0   1
  // e| 0   0   1
  // Topology
  //   1     2
  //     a         b        
  //
  //  d      c
  //        3     e
  // Only entries with "3" match from both sides

  // In case we have more jets than kmaxjets only the 
  // first kmaxjets are searched
  // all other are -1
  // use kMaxJets for a test not to fragemnt the memory...

  for(int i = 0;i < kGenJets;++i)iGenIndex[i] = -1;
  for(int j = 0;j < kRecJets;++j)iRecIndex[j] = -1;


  const int kMode = 3;

  const Int_t nGenJets = TMath::Min(kMaxJets,kGenJets);
  const Int_t nRecJets = TMath::Min(kMaxJets,kRecJets);

  if(nRecJets==0||nGenJets==0)return;

  // UShort_t *iFlag = new UShort_t[nGenJets*nRecJets];
  UShort_t iFlag[kMaxJets*kMaxJets];
  for(int i = 0;i < nGenJets;++i){
    for(int j = 0;j < nRecJets;++j){
      iFlag[i*nGenJets+j] = 0;
    }
  }


  // find the closest distance to the generated
  for(int ig = 0;ig<nGenJets;++ig){
    Float_t dist = maxDist;
    if(iDebug>1)Printf("Gen (%d) p_T %3.3f eta %3.3f ph %3.3f ",ig,genJets[ig].Pt(),genJets[ig].Eta(),genJets[ig].Phi());
    for(int ir = 0;ir<nRecJets;++ir){
      Double_t dR = genJets[ig].DeltaR(&recJets[ir]);
      if(iDebug>1)Printf("Rec (%d) p_T %3.3f eta %3.3f ph %3.3f ",ir,recJets[ir].Pt(),recJets[ir].Eta(),recJets[ir].Phi());
      if(iDebug>1)Printf("Distance (%d)--(%d) %3.3f ",ig,ir,dR);
      if(dR<dist){
	iRecIndex[ig] = ir;
	dist = dR;
      }	
    }
    if(iRecIndex[ig]>=0)iFlag[ig*nGenJets+iRecIndex[ig]]+=1;
    // reset...
    iRecIndex[ig] = -1;
  }
  // other way around
  for(int ir = 0;ir<nRecJets;++ir){
    Float_t dist = maxDist;
    for(int ig = 0;ig<nGenJets;++ig){
      Double_t dR = genJets[ig].DeltaR(&recJets[ir]);
      if(dR<dist){
	iGenIndex[ir] = ig;
	dist = dR;
      }	
    }
    if(iGenIndex[ir]>=0)iFlag[iGenIndex[ir]*nGenJets+ir]+=2;
    // reset...
    iGenIndex[ir] = -1;
  }

  // check for "true" correlations

  if(iDebug>1)Printf(">>>>>> Matrix");

  for(int ig = 0;ig<nGenJets;++ig){
    for(int ir = 0;ir<nRecJets;++ir){
      // Print
      if(iDebug>1)printf("Flag[%d][%d] %d ",ig,ir,iFlag[ig*nGenJets+ir]);

      if(kMode==3){
	// we have a uniqie correlation
	if(iFlag[ig*nGenJets+ir]==3){
	  iGenIndex[ir] = ig;
	  iRecIndex[ig] = ir;
	}
      }
      else{
	// we just take the correlation from on side
	if((iFlag[ig*nGenJets+ir]&2)==2){
	  iGenIndex[ir] = ig;
	}
	if((iFlag[ig*nGenJets+ir]&1)==1){
	  iRecIndex[ig] = ir;
	}
      }
    }
    if(iDebug>1)printf("\n");
  }
}


void  AliAnalysisHelperJetTasks::MergeOutput(char* cFiles, char* cList){

  // This is used to merge the analysis-output from different 
  // data samples/pt_hard bins
  // in case the eventweigth was set to xsection/ntrials already, this
  // is not needed. Both methods only work in case we do not mix different 
  // pt_hard bins, and do not have overlapping bins

  const Int_t nMaxBins = 12;
  // LHC08q jetjet100: Mean = 1.42483e-03, RMS = 6.642e-05
  // LHC08r jetjet50: Mean = 2.44068e-02, RMS = 1.144e-03
  // LHC08v jetjet15-50: Mean = 2.168291 , RMS = 7.119e-02
  // const Float_t xsection[nBins] = {2.168291,2.44068e-02};

  Float_t xsection[nMaxBins];
  Float_t nTrials[nMaxBins];
  Float_t sf[nMaxBins];
  TList *lIn[nMaxBins];
  TFile *fIn[nMaxBins];

  ifstream in1;
  in1.open(cFiles);

  char cFile[120];
  Int_t ibTotal = 0;
  while(in1>>cFile){
    fIn[ibTotal] = TFile::Open(cFile);
    lIn[ibTotal] = (TList*)fIn[ibTotal]->Get(cList);
    Printf("Merging file %s",cFile);
    if(!lIn[ibTotal]){
      Printf("%s:%d No list %s found, exiting...",__FILE__,__LINE__,cList);
      fIn[ibTotal]->ls();
      return;
    }
    TH1* hTrials = (TH1F*)lIn[ibTotal]->FindObject("fh1Trials");
    if(!hTrials){
      Printf("%s:%d fh1PtHard_Trials not found in list, exiting...",__FILE__,__LINE__);
      return;
    }
    TProfile* hXsec = (TProfile*)lIn[ibTotal]->FindObject("fh1Xsec");
    if(!hXsec){
      Printf("%s:%d fh1Xsec  not found in list, exiting...",__FILE__,__LINE__);
      return;
    }
    xsection[ibTotal] = hXsec->GetBinContent(1);
    nTrials[ibTotal] = hTrials->Integral();
    sf[ibTotal] = xsection[ibTotal]/ nTrials[ibTotal];
    ibTotal++;
  }

  if(ibTotal==0){
    Printf("%s:%d No files found for mergin, exiting",__FILE__,__LINE__);
    return;
  }

  TFile *fOut = new TFile("allpt.root","RECREATE");
  TList *lOut = new TList();
  lOut->SetName(lIn[0]->GetName());
  // for the start scale all...
  for(int ie = 0; ie < lIn[0]->GetEntries();++ie){
    TH1 *h1Add = 0;
    THnSparse *hnAdd = 0;
    for(int ib = 0;ib < ibTotal;++ib){
      // dynamic cast does not work with cint
      TObject *h = lIn[ib]->At(ie);
      if(h->InheritsFrom("TH1")){
	TH1 *h1 = (TH1*)h;
	if(ib==0){
	  h1Add = (TH1*)h1->Clone(h1->GetName());
	  h1Add->Scale(sf[ib]);
	}
	else{
	  h1Add->Add(h1,sf[ib]);
	}
      }
      else if(h->InheritsFrom("THnSparse")){
	THnSparse *hn = (THnSparse*)h;
	if(ib==0){
	  hnAdd = (THnSparse*)hn->Clone(hn->GetName());
	  hnAdd->Scale(sf[ib]);
	}
	else{
	  hnAdd->Add(hn,sf[ib]);
	}
      }
      

    }// ib
    if(h1Add)lOut->Add(h1Add);
    else if(hnAdd)lOut->Add(hnAdd);
  }
  fOut->cd();
  lOut->Write(lOut->GetName(),TObject::kSingleKey);
  fOut->Close();
}

Bool_t AliAnalysisHelperJetTasks::PythiaInfoFromFile(const char* currFile,Float_t &fXsec,Float_t &fTrials){
  //
  // get the cross section and the trails either from pyxsec.root or from pysec_hists.root
  // This is to called in Notify and should provide the path to the AOD/ESD file

  TString file(currFile);  
  fXsec = 0;
  fTrials = 1;

  if(file.Contains("root_archive.zip#")){
    Ssiz_t pos1 = file.Index("root_archive",12,TString::kExact);
    Ssiz_t pos = file.Index("#",1,pos1,TString::kExact);
    file.Replace(pos+1,20,"");
  }
  else {
    // not an archive take the basename....
    file.ReplaceAll(gSystem->BaseName(file.Data()),"");
  }
  Printf("%s",file.Data());
  
 
  TFile *fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec.root")); // problem that we cannot really test the existance of a file in a archive so we have to lvie with open error message from root
  if(!fxsec){
    // next trial fetch the histgram file
    fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec_hists.root"));
    if(!fxsec){
	// not a severe condition but inciate that we have no information
      return kFALSE;
    }
    else{
      // find the tlist we want to be independtent of the name so use the Tkey
      TKey* key = (TKey*)fxsec->GetListOfKeys()->At(0); 
      if(!key){
	fxsec->Close();
	return kFALSE;
      }
      TList *list = dynamic_cast<TList*>(key->ReadObj());
      if(!list){
	fxsec->Close();
	return kFALSE;
      }
      fXsec = ((TProfile*)list->FindObject("h1Xsec"))->GetBinContent(1);
      fTrials  = ((TH1F*)list->FindObject("h1Trials"))->GetBinContent(1);
      fxsec->Close();
    }
  } // no tree pyxsec.root
  else {
    TTree *xtree = (TTree*)fxsec->Get("Xsection");
    if(!xtree){
      fxsec->Close();
      return kFALSE;
    }
    UInt_t   ntrials  = 0;
    Double_t  xsection  = 0;
    xtree->SetBranchAddress("xsection",&xsection);
    xtree->SetBranchAddress("ntrials",&ntrials);
    xtree->GetEntry(0);
    fTrials = ntrials;
    fXsec = xsection;
    fxsec->Close();
  }
  return kTRUE;
}
Commit	Line	Data
f3050824	1
f3050824	2	#include "TROOT.h"
519378fb	3	#include "TKey.h"
f3050824	4	#include "TList.h"
519378fb	5	#include "TSystem.h"
188a1ba9	6	#include "TH1F.h"
	7	#include "TProfile.h"
	8	#include "THnSparse.h"
	9	#include "TFile.h"
519378fb	10	#include "TString.h"
f3050824	11	#include "AliMCEvent.h"
5c047edc	12	#include "AliLog.h"
db6bcb0e	13	#include "AliAODJet.h"
f3050824	14	#include "AliStack.h"
	15	#include "AliGenEventHeader.h"
	16	#include "AliGenCocktailEventHeader.h"
	17	#include "AliGenPythiaEventHeader.h"
	18	#include <fstream>
	19	#include <iostream>
	20	#include "AliAnalysisHelperJetTasks.h"
	21
	22
	23	ClassImp(AliAnalysisHelperJetTasks)
	24
	25
	26
	27
	28	AliGenPythiaEventHeader* AliAnalysisHelperJetTasks::GetPythiaEventHeader(AliMCEvent *mcEvent){
	29
	30	AliGenEventHeader* genHeader = mcEvent->GenEventHeader();
	31	AliGenPythiaEventHeader* pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(genHeader);
	32	if(!pythiaGenHeader){
	33	// cocktail ??
	34	AliGenCocktailEventHeader* genCocktailHeader = dynamic_cast<AliGenCocktailEventHeader*>(genHeader);
	35
	36	if (!genCocktailHeader) {
5c047edc	37	AliWarningGeneral(Form(" %s:%d",(char*)__FILE__,__LINE__),"Unknown header type (not Pythia or Cocktail)");
5c047edc	38	// AliWarning(Form("%s %d: Unknown header type (not Pythia or Cocktail)",(char*)__FILE__,__LINE__));
f3050824	39	return 0;
	40	}
	41	TList* headerList = genCocktailHeader->GetHeaders();
	42	for (Int_t i=0; i<headerList->GetEntries(); i++) {
	43	pythiaGenHeader = dynamic_cast<AliGenPythiaEventHeader*>(headerList->At(i));
	44	if (pythiaGenHeader)
	45	break;
	46	}
	47	if(!pythiaGenHeader){
5c047edc	48	AliWarningGeneral(Form(" %s:%d",(char*)__FILE__,__LINE__),"Pythia event header not found");
f3050824	49	return 0;
	50	}
	51	}
	52	return pythiaGenHeader;
	53
	54	}
	55
	56
	57	void AliAnalysisHelperJetTasks::PrintStack(AliMCEvent *mcEvent,Int_t iFirst,Int_t iLast,Int_t iMaxPrint){
	58
	59	AliStack *stack = mcEvent->Stack();
	60	if(!stack){
	61	Printf("%s%d No Stack available",(char*)__FILE__,__LINE__);
	62	return;
	63	}
	64
	65	static Int_t iCount = 0;
	66	if(iCount>iMaxPrint)return;
	67	Int_t nStack = stack->GetNtrack();
	68	if(iLast == 0)iLast = nStack;
	69	else if(iLast > nStack)iLast = nStack;
	70
	71
	72	Printf("####################################################################");
	73	for(Int_t np = iFirst;np<iLast;++np){
	74	TParticle *p = stack->Particle(np);
	75	Printf("Nr.%d --- Status %d ---- Mother1 %d Mother2 %d Daughter1 %d Daughter2 %d ",
	76	np,p->GetStatusCode(),p->GetMother(0),p->GetMother(1),p->GetDaughter(0),p->GetDaughter(1));
	77	Printf("Eta %3.3f Phi %3.3f ",p->Eta(),p->Phi());
	78	p->Print();
	79	Printf("---------------------------------------");
	80	}
	81	iCount++;
	82	}
	83
	84
db6bcb0e	85
db6bcb0e	86
3dc5a1a4	87	void AliAnalysisHelperJetTasks::GetClosestJets(AliAODJet *genJets,const Int_t &kGenJets,
3dc5a1a4	88	AliAODJet *recJets,const Int_t &kRecJets,
db6bcb0e	89	Int_t iGenIndex,Int_t iRecIndex,
	90	Int_t iDebug,Float_t maxDist){
	91
	92	//
	93	// Relate the two input jet Arrays
	94	//
	95
	96	//
	97	// The association has to be unique
	98	// So check in two directions
	99	// find the closest rec to a gen
	100	// and check if there is no other rec which is closer
	101	// Caveat: Close low energy/split jets may disturb this correlation
	102
3dc5a1a4	103
db6bcb0e	104	// Idea: search in two directions generated e.g (a--e) and rec (1--3)
	105	// Fill a matrix with Flags (1 for closest rec jet, 2 for closest rec jet
	106	// in the end we have something like this
	107	// 1 2 3
	108	// ------------
	109	// a\| 3 2 0
	110	// b\| 0 1 0
	111	// c\| 0 0 3
	112	// d\| 0 0 1
	113	// e\| 0 0 1
	114	// Topology
	115	// 1 2
	116	// a b
	117	//
	118	// d c
	119	// 3 e
	120	// Only entries with "3" match from both sides
3dc5a1a4	121
	122	// In case we have more jets than kmaxjets only the
	123	// first kmaxjets are searched
	124	// all other are -1
	125	// use kMaxJets for a test not to fragemnt the memory...
	126
	127	for(int i = 0;i < kGenJets;++i)iGenIndex[i] = -1;
	128	for(int j = 0;j < kRecJets;++j)iRecIndex[j] = -1;
	129
	130
db6bcb0e	131
	132	const int kMode = 3;
	133
3dc5a1a4	134	const Int_t nGenJets = TMath::Min(kMaxJets,kGenJets);
3dc5a1a4	135	const Int_t nRecJets = TMath::Min(kMaxJets,kRecJets);
db6bcb0e	136
	137	if(nRecJets==0\|\|nGenJets==0)return;
	138
3dc5a1a4	139	// UShort_t iFlag = new UShort_t[nGenJetsnRecJets];
3dc5a1a4	140	UShort_t iFlag[kMaxJets*kMaxJets];
db6bcb0e	141	for(int i = 0;i < nGenJets;++i){
	142	for(int j = 0;j < nRecJets;++j){
	143	iFlag[i*nGenJets+j] = 0;
	144	}
	145	}
	146
	147
	148
	149	// find the closest distance to the generated
	150	for(int ig = 0;ig<nGenJets;++ig){
	151	Float_t dist = maxDist;
	152	if(iDebug>1)Printf("Gen (%d) p_T %3.3f eta %3.3f ph %3.3f ",ig,genJets[ig].Pt(),genJets[ig].Eta(),genJets[ig].Phi());
	153	for(int ir = 0;ir<nRecJets;++ir){
	154	Double_t dR = genJets[ig].DeltaR(&recJets[ir]);
	155	if(iDebug>1)Printf("Rec (%d) p_T %3.3f eta %3.3f ph %3.3f ",ir,recJets[ir].Pt(),recJets[ir].Eta(),recJets[ir].Phi());
	156	if(iDebug>1)Printf("Distance (%d)--(%d) %3.3f ",ig,ir,dR);
	157	if(dR<dist){
	158	iRecIndex[ig] = ir;
	159	dist = dR;
	160	}
	161	}
	162	if(iRecIndex[ig]>=0)iFlag[ig*nGenJets+iRecIndex[ig]]+=1;
	163	// reset...
	164	iRecIndex[ig] = -1;
	165	}
	166	// other way around
	167	for(int ir = 0;ir<nRecJets;++ir){
	168	Float_t dist = maxDist;
	169	for(int ig = 0;ig<nGenJets;++ig){
	170	Double_t dR = genJets[ig].DeltaR(&recJets[ir]);
	171	if(dR<dist){
	172	iGenIndex[ir] = ig;
	173	dist = dR;
	174	}
	175	}
	176	if(iGenIndex[ir]>=0)iFlag[iGenIndex[ir]*nGenJets+ir]+=2;
	177	// reset...
	178	iGenIndex[ir] = -1;
	179	}
	180
	181	// check for "true" correlations
	182
	183	if(iDebug>1)Printf(">>>>>> Matrix");
	184
	185	for(int ig = 0;ig<nGenJets;++ig){
	186	for(int ir = 0;ir<nRecJets;++ir){
	187	// Print
	188	if(iDebug>1)printf("Flag[%d][%d] %d ",ig,ir,iFlag[ig*nGenJets+ir]);
	189
	190	if(kMode==3){
	191	// we have a uniqie correlation
	192	if(iFlag[ig*nGenJets+ir]==3){
	193	iGenIndex[ir] = ig;
	194	iRecIndex[ig] = ir;
	195	}
	196	}
	197	else{
	198	// we just take the correlation from on side
	199	if((iFlag[ig*nGenJets+ir]&2)==2){
	200	iGenIndex[ir] = ig;
	201	}
	202	if((iFlag[ig*nGenJets+ir]&1)==1){
	203	iRecIndex[ig] = ir;
	204	}
205	}
206	}
207	if(iDebug>1)printf("\n");
208	}
db6bcb0e	209	}
	210
	211
	212
188a1ba9	213	void AliAnalysisHelperJetTasks::MergeOutput(char* cFiles, char* cList){
db6bcb0e	214
188a1ba9	215	// This is used to merge the analysis-output from different
	216	// data samples/pt_hard bins
	217	// in case the eventweigth was set to xsection/ntrials already, this
	218	// is not needed. Both methods only work in case we do not mix different
	219	// pt_hard bins, and do not have overlapping bins
db6bcb0e	220
188a1ba9	221	const Int_t nMaxBins = 12;
	222	// LHC08q jetjet100: Mean = 1.42483e-03, RMS = 6.642e-05
	223	// LHC08r jetjet50: Mean = 2.44068e-02, RMS = 1.144e-03
	224	// LHC08v jetjet15-50: Mean = 2.168291 , RMS = 7.119e-02
	225	// const Float_t xsection[nBins] = {2.168291,2.44068e-02};
	226
	227	Float_t xsection[nMaxBins];
	228	Float_t nTrials[nMaxBins];
	229	Float_t sf[nMaxBins];
	230	TList *lIn[nMaxBins];
	231	TFile *fIn[nMaxBins];
	232
	233	ifstream in1;
	234	in1.open(cFiles);
	235
	236	char cFile[120];
	237	Int_t ibTotal = 0;
	238	while(in1>>cFile){
	239	fIn[ibTotal] = TFile::Open(cFile);
	240	lIn[ibTotal] = (TList*)fIn[ibTotal]->Get(cList);
5c047edc	241	Printf("Merging file %s",cFile);
188a1ba9	242	if(!lIn[ibTotal]){
	243	Printf("%s:%d No list %s found, exiting...",__FILE__,__LINE__,cList);
	244	fIn[ibTotal]->ls();
	245	return;
	246	}
	247	TH1* hTrials = (TH1F*)lIn[ibTotal]->FindObject("fh1Trials");
	248	if(!hTrials){
	249	Printf("%s:%d fh1PtHard_Trials not found in list, exiting...",__FILE__,__LINE__);
	250	return;
	251	}
	252	TProfile* hXsec = (TProfile*)lIn[ibTotal]->FindObject("fh1Xsec");
	253	if(!hXsec){
	254	Printf("%s:%d fh1Xsec not found in list, exiting...",__FILE__,__LINE__);
	255	return;
	256	}
	257	xsection[ibTotal] = hXsec->GetBinContent(1);
	258	nTrials[ibTotal] = hTrials->Integral();
	259	sf[ibTotal] = xsection[ibTotal]/ nTrials[ibTotal];
	260	ibTotal++;
	261	}
	262
	263	if(ibTotal==0){
	264	Printf("%s:%d No files found for mergin, exiting",__FILE__,__LINE__);
	265	return;
	266	}
	267
	268	TFile *fOut = new TFile("allpt.root","RECREATE");
	269	TList *lOut = new TList();
	270	lOut->SetName(lIn[0]->GetName());
	271	// for the start scale all...
	272	for(int ie = 0; ie < lIn[0]->GetEntries();++ie){
	273	TH1 *h1Add = 0;
	274	THnSparse *hnAdd = 0;
	275	for(int ib = 0;ib < ibTotal;++ib){
	276	// dynamic cast does not work with cint
	277	TObject *h = lIn[ib]->At(ie);
	278	if(h->InheritsFrom("TH1")){
	279	TH1 h1 = (TH1)h;
	280	if(ib==0){
	281	h1Add = (TH1*)h1->Clone(h1->GetName());
	282	h1Add->Scale(sf[ib]);
	283	}
	284	else{
	285	h1Add->Add(h1,sf[ib]);
	286	}
	287	}
	288	else if(h->InheritsFrom("THnSparse")){
	289	THnSparse hn = (THnSparse)h;
	290	if(ib==0){
	291	hnAdd = (THnSparse*)hn->Clone(hn->GetName());
	292	hnAdd->Scale(sf[ib]);
	293	}
	294	else{
	295	hnAdd->Add(hn,sf[ib]);
	296	}
	297	}
	298
	299
	300	}// ib
	301	if(h1Add)lOut->Add(h1Add);
	302	else if(hnAdd)lOut->Add(hnAdd);
	303	}
	304	fOut->cd();
	305	lOut->Write(lOut->GetName(),TObject::kSingleKey);
306	fOut->Close();
307	}
519378fb	308
	309	Bool_t AliAnalysisHelperJetTasks::PythiaInfoFromFile(const char* currFile,Float_t &fXsec,Float_t &fTrials){
	310	//
	311	// get the cross section and the trails either from pyxsec.root or from pysec_hists.root
	312	// This is to called in Notify and should provide the path to the AOD/ESD file
	313
	314	TString file(currFile);
	315	fXsec = 0;
	316	fTrials = 1;
	317
	318	if(file.Contains("root_archive.zip#")){
	319	Ssiz_t pos1 = file.Index("root_archive",12,TString::kExact);
	320	Ssiz_t pos = file.Index("#",1,pos1,TString::kExact);
	321	file.Replace(pos+1,20,"");
	322	}
	323	else {
	324	// not an archive take the basename....
	325	file.ReplaceAll(gSystem->BaseName(file.Data()),"");
	326	}
	327	Printf("%s",file.Data());
	328
	329
	330
	331
	332	TFile *fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec.root")); // problem that we cannot really test the existance of a file in a archive so we have to lvie with open error message from root
	333	if(!fxsec){
	334	// next trial fetch the histgram file
	335	fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec_hists.root"));
	336	if(!fxsec){
	337	// not a severe condition but inciate that we have no information
	338	return kFALSE;
	339	}
	340	else{
	341	// find the tlist we want to be independtent of the name so use the Tkey
	342	TKey* key = (TKey*)fxsec->GetListOfKeys()->At(0);
	343	if(!key){
	344	fxsec->Close();
	345	return kFALSE;
	346	}
	347	TList list = dynamic_cast<TList>(key->ReadObj());
	348	if(!list){
	349	fxsec->Close();
	350	return kFALSE;
	351	}
	352	fXsec = ((TProfile*)list->FindObject("h1Xsec"))->GetBinContent(1);
	353	fTrials = ((TH1F*)list->FindObject("h1Trials"))->GetBinContent(1);
	354	fxsec->Close();
	355	}
	356	} // no tree pyxsec.root
	357	else {
	358	TTree xtree = (TTree)fxsec->Get("Xsection");
	359	if(!xtree){
	360	fxsec->Close();
	361	return kFALSE;
	362	}
	363	UInt_t ntrials = 0;
	364	Double_t xsection = 0;
	365	xtree->SetBranchAddress("xsection",&xsection);
	366	xtree->SetBranchAddress("ntrials",&ntrials);
	367	xtree->GetEntry(0);
	368	fTrials = ntrials;
	369	fXsec = xsection;
	370	fxsec->Close();
	371	}
372	return kTRUE;
373	}