C++ TH1F::Multiply方法代码示例

本文整理汇总了C++中TH1F::Multiply方法的典型用法代码示例。如果您正苦于以下问题：C++ TH1F::Multiply方法的具体用法？C++ TH1F::Multiply怎么用？C++ TH1F::Multiply使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TH1F的用法示例。

在下文中一共展示了TH1F::Multiply方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: main


//.........这里部分代码省略.........
	cout << "Analysing RECO sys" << endl;
	getAllEffSys("RECO", xvar, xnbins, xbins, weight,
			treeMC, baseCut, treeMCGen, extCut,
			treeMCjpsi, baseJpsiCut+binCut, treeMCjpsi_Gen, extCut+binCut,
			&hdefault, &lfsys_plus, &lfsys_minus, &decaysys, &polsys_minus, &polsys_plus,
			&poljpsi1, &poljpsi2, &poljpsi3, &poljpsi4, &poljpsi5, &poljpsi6, &poljpsi7, &poljpsi8, &DDsys, doSys, "", jpsi );
	
	cout << "Analysing MVA sys" << endl;
	getAllEffSys("MVA", xvar, xnbins, xbins, weight,
			treeMCmva, baseCut+CutsDef::MVAcut, treeMCmva, baseCut,
			treeMCjpsi, baseJpsiCut+CutsDef::MVAcut+binCut, treeMCjpsi, baseJpsiCut+binCut,
			&hdefault, &lfsys_plus, &lfsys_minus, &decaysys, &polsys_minus, &polsys_plus,
			&poljpsi1, &poljpsi2, &poljpsi3, &poljpsi4, &poljpsi5, &poljpsi6, &poljpsi7, &poljpsi8, &DDsys, doSys, "", jpsi );

	cout << "Analysing TRIG sys" << endl;
	getAllEffSys("TRIG", xvar, xnbins, xbins, weight,
			treeMC, baseCut+CutsDef::MVAcut+CutsDef::TrigPassed, treeMC, baseCut+CutsDef::MVAcut,
			treeMCjpsi, baseJpsiCut+CutsDef::MVAcut+CutsDef::TrigPassed+binCut, treeMCjpsi, baseJpsiCut+CutsDef::MVAcut+binCut,
			&hdefault, &lfsys_plus, &lfsys_minus, &decaysys, &polsys_minus, &polsys_plus,
			&poljpsi1, &poljpsi2, &poljpsi3, &poljpsi4, &poljpsi5, &poljpsi6, &poljpsi7, &poljpsi8, &DDsys, doSys, "", jpsi );
	
	TH1F * toteff_lowSel = NULL;
	if(rel || jpsi)
	{
		TString polweight = "physRate_polp006";
		if(jpsi) polweight = "physRate_pol0";
		TH1F * mva_lowSel = getEff("UPPER", xvar, xnbins, xbins,
			treeMCmva, baseCut+CutsDef::MVAcut, treeMCmva, baseCut,
			weight+"*lifeTimeW*pt_weight*"+polweight,
			treeMCjpsi, baseJpsiCut+CutsDef::MVAcut_lowSel+binCut, treeMCjpsi, baseJpsiCut+binCut,
			weight+"*lifeTimeW*physRate_pol0*pt_weight" );
		mva_lowSel->Write("hmvaeff_lowSel");
		TH1F * uppereff_lowSel = (TH1F *)hdefault[2]->Clone("huppereff_lowSel");
		uppereff_lowSel->Multiply(hdefault[3]);
		uppereff_lowSel->Multiply(mva_lowSel);
		toteff_lowSel = (TH1F *)hdefault[0]->Clone("htoteff_lowSel");
		toteff_lowSel->Multiply(hdefault[1]);
		toteff_lowSel->Multiply(uppereff_lowSel);
		uppereff_lowSel->Write("huppereff_lowSel");
		toteff_lowSel->Write("htoteff_lowSel");
	}

	//Simply model
	//TH1F * simpleeff = getEff("SIMPLY", xvar, xnbins, xbins,
	//		treeMCgeom, simpleEffCut, treeMCgeom, "", weight);


			
	TCanvas * c = new TCanvas();
	gStyle->SetOptStat(0);
	gStyle->SetOptFit();
	TH1F * uppereff = (TH1F *)hdefault[2]->Clone("huppereff");
	uppereff->Multiply(hdefault[3]);
	uppereff->Multiply(hdefault[4]);

	TH1F * toteff = (TH1F *)hdefault[0]->Clone("htoteff");
	if(xvar=="cosThetaB") hdefault[1]->Scale(1./hdefault[1]->Integral());
	toteff->Multiply(hdefault[1]);
	toteff->Multiply(uppereff);
	toteff->SetTitle("Total eff");
	//toteff->Fit("pol2");
	c->Print("effvs"+xvarname+"_"+type+"_tot.pdf");
	toteff->Write("htoteff");
	//uppereff->Fit("pol2");
	c->Print("effvs"+xvarname+"_"+type+"_upper.pdf");
	uppereff->Write("huppereff");

开发者ID:lucapescatore88，项目名称:Lmumu，代码行数:67，代码来源:Lb_sys.cpp

示例2: DrawFits


//.........这里部分代码省略.........
			if(j==0) PlotDistribution(gPad, TemplatesP[j],"Reconstructed Mass [GeV/c^2]","Counts",1,"same",1,TemplatesP[j]->GetBinContent(TemplatesP[j]->GetMaximumBin())*1.13,10);
			else     PlotDistribution(gPad, TemplatesP[j],"Reconstructed Mass [GeV/c^2]","Counts",colorbase + j,"same",1,TemplatesP[j]->GetBinContent(TemplatesP[j]->GetMaximumBin())*1.13,7,"",false,false,true);		
		}
	
		Plots.Add(c1);
		Plots.writeObjsInFolder((FIT->GetName()+"/Fits/Bin"+to_string(i)).c_str());	


		TCanvas * c2 = new TCanvas("Modified T. Fits");
                c2->SetCanvasSize(2000,1500);

		PlotDistribution(gPad, TemplatesP[0], "Reconstructed Mass [GeV/c^2]","Counts",2,"same",1,Datas[0]->GetBinContent(Datas[0]->GetMaximumBin())*1.13,10,"Original Protons MC Template");
		PlotDistribution(gPad, TemplatesD[0], "Reconstructed Mass [GeV/c^2]","Counts",4,"same",1,1e5,10,"Original Deuterons MC Template");
		PlotDistribution(gPad, TemplatesHe[0],"Reconstructed Mass [GeV/c^2]","Counts",3,"same",1,1e5,10,"Original He Fragm. MC Template");

		for(int j=TemplatesP.size()-1;j>=1;j--){
                        PlotDistribution(gPad, TemplatesP[j],"Reconstructed Mass [GeV/c^2]","Counts",2,"same",1,1e5,1,"",false,false,true);
			PlotDistribution(gPad, TemplatesD[j],"Reconstructed Mass [GeV/c^2]","Counts",4,"same",1,1e5,1,"",false,false,true);
                	//PlotDistribution(gPad, TemplatesHe[j],"Reconstructed Mass [GeV/c^2]","Counts",3,"same",1,1e5,1,"",false,false,true);
		}
		PlotDistribution(gPad, Datas[0],"Reconstructed Mass [GeV/c^2]","Counts",1,"ePsame",1,1e5,3,"ISS data",false,true);
	


		Plots.Add(c2);
                Plots.writeObjsInFolder((FIT->GetName()+"/Fits/Bin"+to_string(i)).c_str());
		
		
		TCanvas * c3 = new TCanvas("Template Fits");
                c3->SetCanvasSize(2000,1500);

		PlotDistribution(gPad, TemplatesP[0] ,"Reconstructed Mass [GeV/c^2]","Counts",2,"same",1,Datas[0]->GetBinContent(Datas[0]->GetMaximumBin())*1.13,2,"Original Protons MC Template");
		PlotDistribution(gPad, TemplatesD[0] ,"Reconstructed Mass [GeV/c^2]","Counts",4,"same",1,1e5,2,"Original Deuterons MC Template");
		PlotDistribution(gPad, TemplatesHe[0],"Reconstructed Mass [GeV/c^2]","Counts",3,"same",1,1e5,2,"Original He Fragm. MC Template");
		PlotDistribution(gPad, TemplatesP[1] ,"Reconstructed Mass [GeV/c^2]","Counts",2,"same",1,Datas[0]->GetBinContent(Datas[0]->GetMaximumBin())*1.13,10,"Best #chi^{2} Protons MC Template");
		PlotDistribution(gPad, TemplatesD[1] ,"Reconstructed Mass [GeV/c^2]","Counts",4,"same",1,1e5,10,"Best #chi^{2} Deuterons MC Template");
		PlotDistribution(gPad, TemplatesHe[1],"Reconstructed Mass [GeV/c^2]","Counts",3,"same",1,1e5,10,"Best #chi^{2} he Fragm. MC Template");
		

		PlotDistribution(gPad, Datas[0],"Reconstructed Mass [GeV/c^2]","Counts",1,"ePsame",1,1e5,3,"ISS data",false,true);
		if(Fits.size()>0) PlotDistribution(gPad, Fits[0],"Reconstructed Mass [gev/c^2]","counts",6,"same",1,1e5,4,"Fraction Fit");
	

		Plots.Add(c3);
                Plots.writeObjsInFolder((FIT->GetName()+"/Fits/Bin"+to_string(i)).c_str());

		TCanvas * c5 = new TCanvas("Transfer Functions");
                c5->SetCanvasSize(2000,1500);

		for(int j=0;j<Transfer.size();j++){
			Transfer[j]->Smooth(3);
			PlotDistribution(gPad, Transfer[j],"Reconstructed Mass [GeV/c^2]","Prim. / (Prim. + Sec.)",j,"hist,same",0,1,7,("Bin. "+to_string(j)).c_str(),false,false);
		}

		Plots.Add(c5);
                Plots.writeObjsInFolder((FIT->GetName()+"/Fits").c_str());

	

		TCanvas * c4 = new TCanvas("ChiSquare");
                c4->SetCanvasSize(2000,1500);
		gPad->SetLogz();	
		TH2F * Chi = (TH2F*) infile->Get((FIT->GetName()+"/Fit Results/Spreads/ChiSquare/ChiSquare Bin "+to_string(i)).c_str());
                Chi->GetZaxis()->SetRangeUser(0.2,100);
                PlotTH2F(gPad, Chi, "Additive #sigma","Mean shift", "colz");	


		Plots.Add(c4);
                Plots.writeObjsInFolder((FIT->GetName()+"/Fits/Bin"+to_string(i)).c_str());

		TCanvas * c6 = new TCanvas("OverCutoff Events");
                c6->SetCanvasSize(2000,1500);
			
		TH1F * OverCutoffP = (TH1F *) TemplatesP[1]->Clone();
		OverCutoffP->Multiply(Transfer[i]);
		TH1F * OverCutoffD = (TH1F *) TemplatesD[1]->Clone();
		OverCutoffD->Multiply(Transfer[i]);
		TH1F * NoCutoffP = (TH1F *) TemplatesP[1]->Clone();

		NoCutoffP->Scale(
			OverCutoffP->GetBinContent(OverCutoffP->GetMaximumBin())/
			NoCutoffP->GetBinContent(NoCutoffP->GetMaximumBin()) );

		PlotDistribution(gPad, NoCutoffP,"Reconstructed Mass [GeV/c^2]","Primary Counts",2,"same",1,Datas[1]->GetBinContent(Datas[1]->GetMaximumBin())*1.13,3,"Best #chi^{2} Protons MC Template");
		PlotDistribution(gPad, OverCutoffP,"Reconstructed Mass [GeV/c^2]","Counts",2,"same",1,Datas[0]->GetBinContent(Datas[0]->GetMaximumBin())*1.13,10,"Best #chi^{2} Protons MC (Cutoff filtered)");
		PlotDistribution(gPad, OverCutoffD,"Reconstructed Mass [GeV/c^2]","Counts",4,"same",1,Datas[0]->GetBinContent(Datas[0]->GetMaximumBin())*1.13,10,"Best #chi^{2} Deutons MC (Cutoff filtered)");
		PlotDistribution(gPad, Datas[1],"Reconstructed Mass [GeV/c^2]","Primary Counts",1,"ePsame",1,Datas[1]->GetBinContent(Datas[1]->GetMaximumBin())*1.13,3,"ISS data",false,true);
	

		Plots.Add(c6);
                Plots.writeObjsInFolder((FIT->GetName()+"/Fits/Bin"+to_string(i)).c_str());


	

	}

	return;

}

开发者ID:francescodimiccoli，项目名称:Deutons，代码行数:101，代码来源:CountsExtraction.cpp

示例3: ExtractOutputHistos


//.........这里部分代码省略.........


  // Count trackable MC tracks
  CountPrimaries(hMultCount);

 


  // Get Errors right
  hMultCount->Sumw2();
  hAllMC->Sumw2();   
  hAllFound->Sumw2();
  hPerfect->Sumw2(); 
  hImperfect->Sumw2(); 
  h2Dpt->Sumw2();
  h2Ddca->Sumw2();

  // -- Global efficienies

  nTrackTotalMC = hAllMC->GetEntries();
  Double_t eff = ((Double_t)nTrackPerfect)/nTrackTotalMC;
  printf("-> Total number of events: %lld -> MCtracks %d -> nPerfect %d  -> Eff: %3.2lf \n",
	 tree->GetEntries(),nTrackTotalMC,nTrackPerfect,eff);

  Double_t purity = ((Double_t)nTrackPerfect)/nTrackFound;
  printf("-> Total number of events: %lld -> FoundTracks %d -> nPerfect %d  -> Purity: %3.2lf \n",
	 tree->GetEntries(),nTrackFound,nTrackPerfect,purity);

  // Efficiencies - and normalize to 100%

  TF1 f1("f1","100+x*0",0.,1.e3);

  hPurity->Divide(hPerfect,hAllFound,1,1,"b"); 
  hPurity->Multiply(&f1);
  hPurity->SetMarkerColor(kGreen);
  hPurity->SetMarkerStyle(21);
  hPurity->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
  hPurity->SetStats(0);

  hPurity->GetYaxis()->SetRangeUser(0,100);
  hPurity->SetTitle("Efficiency & Purity");

  hEff->Divide(hPerfect,hAllMC,1,1,"b");
  hEff->Multiply(&f1);
  hEff->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
  hEff->SetMarkerColor(kBlue);
  hEff->SetMarkerStyle(21);
  hEff->SetStats(0);

  hFake->Divide(hImperfect,hAllMC,1,1,"b");
  hFake->Multiply(&f1);
  hFake->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
  hFake->SetMarkerColor(kRed);
  hFake->SetMarkerStyle(21);
  hFake->SetStats(0);


  hAnna->Divide(hAllFound,hAllMC,1,1,"b");
  hAnna->Multiply(&f1);
  hAnna->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
  hAnna->SetMarkerColor(kBlack);
  hAnna->SetMarkerStyle(21);
  hAnna->SetStats(0);

  TCanvas *c1 = new TCanvas("c1","NoMCTrackFound");//,200,10,900,900);
  TVirtualPad *pad =   c1->cd();

开发者ID:alisw，项目名称:AliRoot，代码行数:67，代码来源:FastVsSlowSim.C

示例4: plotMerged

void plotMerged(Bool_t onlyPlot=0) {

  gStyle->SetPalette(1);
 
  TFile f("histoSum.root","UPDATE");

  TH1F* hAllMC = f.Get("allMC");
  TH1F* hAllFound= f.Get("allFound");
  TH1F* hImperfect= f.Get("imperfect");
  TH1F* hPerfect= f.Get("perfect");
  TH1F* hNoMCTrack= f.Get("noMCtrack");
  
  
  // have to be recalculated
  TH1F* hPurity = f.Get("purity");
  TH1F* hEff= f.Get("efficiency");
  TH1F* hFake= f.Get("fake");
  TH1F* hAnna= f.Get("annaEff");

  TH2D* h2Ddca= f.Get("dca2D");
  TGraphErrors *d0= f.Get("dca");

  TH2D* h2Dpt= f.Get("dPt2D");
  TGraphErrors *gPt= f.Get("dPt");


  if (!onlyPlot) {
    /*    // Get Errors right
    hAllMC->Sumw2();   
    hAllFound->Sumw2();
    hPerfect->Sumw2(); 
    hImperfect->Sumw2(); 
    h2Dpt->Sumw2();
    h2Ddca->Sumw2();
    */

    // Efficiencies - and normalize to 100%
    
    TF1 f1("f1","100+x*0",0.,1.e3);
    
    hPurity->Divide(hPerfect,hAllFound,1,1,"b"); 
    hPurity->Multiply(&f1);
    hPurity->SetMarkerColor(kGreen);
    hPurity->SetMarkerStyle(21);
    hPurity->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
    hPurity->SetStats(0);
    
    hPurity->GetYaxis()->SetRangeUser(0,100);
    hPurity->SetTitle("Efficiency & Purity");
    
    hEff->Divide(hPerfect,hAllMC,1,1,"b");
    hEff->Multiply(&f1);
    hEff->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
    hEff->SetMarkerColor(kBlue);
    hEff->SetMarkerStyle(21);
    hEff->SetStats(0);
    
    hFake->Divide(hImperfect,hAllMC,1,1,"b");
    hFake->Multiply(&f1);
    hFake->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
    hFake->SetMarkerColor(kRed);
    hFake->SetMarkerStyle(21);
    hFake->SetStats(0);
    
    hAnna->Divide(hAllFound,hAllMC,1,1,"b");
    hAnna->Multiply(&f1);
    hAnna->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
    hAnna->SetMarkerColor(kBlack);
    hAnna->SetMarkerStyle(21);
    hAnna->SetStats(0);
    
    
    // Impact parameter resolution ---------------
    TCanvas *c3 = new TCanvas("c3","impact");//,200,10,900,900);
    c3->Divide(2,1); c3->cd(1);
    h2Ddca->DrawCopy("colz");
    h2Ddca->FitSlicesY() ;
    TH2D *dcaM = (TH2D*)gDirectory->Get("dca2D_1"); dcaM->Draw("same");
    TH2D *dcaRMS = (TH2D*)gDirectory->Get("dca2D_2"); //dcaRMS->Draw();
    TGraphErrors *d0 = new TGraphErrors(); 
    for (Int_t ibin =1; ibin<=dcaRMS->GetXaxis()->GetNbins(); ibin++) {
      d0->SetPoint(     ibin-1,dcaRMS->GetBinCenter(ibin),dcaRMS->GetBinContent(ibin)*1e4); // microns
      d0->SetPointError(ibin-1,0,dcaRMS->GetBinError(ibin)*1e4); // microns
    }
    d0->SetMarkerStyle(21);
    d0->SetMaximum(200);  d0->SetMinimum(0);
    d0->GetXaxis()->SetTitle("transverse momentum p_{t} (GeV)");
    d0->GetYaxis()->SetTitle("R-#phi Pointing Resolution (#mum)");
    d0->SetName("dca");  d0->SetTitle("DCAvsPt");
    //  c3->cd(1);  h2Ddca->Draw("surf2");
    c3->cd(2);  d0->Draw("APE");
    
    // PT RESOLUTION ------------
    TCanvas *c4 = new TCanvas("c4","pt resolution");//,200,10,900,900);  
    c4->Divide(2,1); c4->cd(1);
    h2Dpt->DrawCopy("colz");
    h2Dpt->FitSlicesY() ;
    TH2D *dPtM = (TH2D*)gDirectory->Get("dPt2D_1"); dPtM->Draw("same");
    TH2D *dPtRMS = (TH2D*)gDirectory->Get("dPt2D_2"); // dPtRMS->Draw("");
    TGraphErrors *gPt = new TGraphErrors(); 
//.........这里部分代码省略.........

开发者ID:alisw，项目名称:AliRoot，代码行数:101，代码来源:FastVsSlowSim.C

示例5: syst_MCeta


//.........这里部分代码省略.........
    cout<<"ERROR !! The syst2 plot is void. Exiting now ..."<<endl;
    return;
  }
  
  TH1F* factor = new TH1F("factor","factor",hbase->GetNbinsX(),hbase->GetXaxis()->GetXbins()->GetArray());
  if(E==0.9){
    for(int i=1;i<=hbase->GetNbinsX();++i){
      if(hsyst1->GetBinContent(i)!=0)
        factor->SetBinContent(i,hsyst2->GetBinContent(i) / hsyst1->GetBinContent(i));
      else
        factor->SetBinContent(i,1.);
    }
  }
  else if(E==2.36){
    double start = -0.5;
    double ratio = 1;
    if((getEdgeLastFilledBin(hsyst1) - start)!=0)
      ratio = (getEdgeLastFilledBin(hbase) - start) / (getEdgeLastFilledBin(hsyst1) - start);
    
    //part with no stretching
    for( int i = 1 ; i < hbase->GetXaxis()->FindFixBin(start) ; ++i ){
      if(hsyst1->GetBinContent(i)!=0)
        factor->SetBinContent(i,hsyst2->GetBinContent(i) / hsyst1->GetBinContent(i));
      else
        factor->SetBinContent(i,1.);
    }
    
    //part with stretching
    for( int i = hbase->GetXaxis()->FindFixBin(start) ; i <= hbase->GetNbinsX() ; ++i ){
      int bin = hsyst1->GetXaxis()->FindFixBin( (hbase->GetBinCenter(i)-start) / ratio  +  start);
      
      if(hsyst1->GetBinContent(bin)!=0)
        factor->SetBinContent(i,hsyst2->GetBinContent(bin) / hsyst1->GetBinContent(bin));
      else
        factor->SetBinContent(i,1.);
    }
  }
  
  TH1F* hsyst = (TH1F*) hbase->Clone("eta_syst");
  hsyst->Multiply(factor);
  
  TMoments* msyst = new TMoments(hsyst);
  msyst->ComputeMoments();
  msyst->print();
  
  
  //Making output file
  
  outstr.str("");
  outstr << "hyp" << 1 << "_niter" << 0 << "_cut" << cut << "_DataType" << 0;
  
  TString toutput = fileManager(3,typeMC,E,1,500,-1,outstr.str());
  TFile* foutput  = TFile::Open(toutput,"RECREATE");
  cout<<"Output file : " << toutput << endl;
  
  
  //Making kno plot
  double knomean = hsyst->GetMean();
  
  TString tkno = toutput;
  tkno.ReplaceAll("plots/","plots/current_b1_2/");
  cout<<"Opening for kno mean the file : "<<tkno<<endl;
  TFile* fkno = TFile::Open(tkno,"READ");
  if(fkno!=0){
    TMoments* mom_kno = (TMoments*) fkno->Get("unfolding/moments/moments");
    knomean = mom_kno->mean->GetMean();
  }
  else{
    cout<<"WARNING !! The file does not exist, taking the mean of the hist instead"<<endl;
  }
  
  
  TH1F* kno = new TH1F("kno_corrected","kno_corrected;z = n_{ch} / < n_{ch} >;#psi(z)",hsyst->GetNbinsX(),Divide(hsyst->GetXaxis()->GetXbins(),knomean));
  kno->Sumw2();
  /*for( int k = 60 ; k <= nch_corrected->GetNbinsX() ; ++k)
    nch_corrected->SetBinContent(k,0);*/
  for( int k = 1 ; k <= hsyst->GetNbinsX() ; ++k){
    kno->SetBinContent(k , knomean * hsyst->GetBinContent(k) / hsyst->Integral());
    kno->SetBinError(k , knomean * hsyst->GetBinError(k) / hsyst->Integral());
  }
  
  
  foutput->cd();
  foutput->mkdir("unfolding");
  foutput->cd("unfolding");
  factor->Write();
  
  hsyst->Write("nch_data_corrected");
  kno->Write();
  
  gDirectory->mkdir("moments");
  gDirectory->cd("moments");
  msyst->Write("moments");
  
  foutput->Close();
  
  
  
  
}

开发者ID:UAEDF，项目名称:UAmulti，代码行数:101，代码来源:syst_MCeta.C

示例6: MakePi0Analysis


//.........这里部分代码省略.........
	    
	    if(iFit==0){
	      if(pol==0){
		fFitScale->SetParameter(0,fFitRatio_SignalBG->GetParameter(5));
	      }
	      else if(pol==1){
		fFitScale->SetParameters(fFitRatio_SignalBG->GetParameter(5),fFitRatio_SignalBG->GetParameter(6));
	      }
	      else if(pol==2){
		fFitScale->SetParameters(fFitRatio_SignalBG->GetParameter(5),fFitRatio_SignalBG->GetParameter(6),fFitRatio_SignalBG->GetParameter(7));
	      }
	    }	
	    if(iFit==1){
	      if(pol==0){
		fFitScale->SetParameter(0,fFitRatio_SignalBG->GetParameter(4));
	      }
	      else if(pol==1){
		fFitScale->SetParameters(fFitRatio_SignalBG->GetParameter(4),fFitRatio_SignalBG->GetParameter(5));
	      }
	      else if(pol==2){
		fFitScale->SetParameters(fFitRatio_SignalBG->GetParameter(4),fFitRatio_SignalBG->GetParameter(5),fFitRatio_SignalBG->GetParameter(6));
	      }
	    }	
	    
	    c3 = new TCanvas("c3","c3",600,600);
	    c3->cd();
	    fHistRatio->Draw();
	    fFitRatio_SignalBG->Draw("same");
	    fFitScale->Draw("same");
	    c3->SetName(Form("cRatioSameBG_Pol%d_No%d",pol,i+1)+fitName[iFit]+tofName[itof]+modName[iMod]);
	    tfout->WriteTObject(c3);

	    TH1F* fHistScaledMix = (TH1F*)fHistBasicMix->Clone();
	    fHistScaledMix->Multiply(fFitScale);
	    fHistFinalBG[i] = (TH1F*)fHistScaledMix->Clone();;
	    
	    TH1F* fHistSignal = (TH1F*)fHistBasicSame->Clone();
	    fHistSignal->SetName(Form("fHistSignal_Pol%d_No%d",pol,i+1)+fitName[iFit]+tofName[itof]+modName[iMod]);
	    fHistScaledMix->SetName(Form("fHistScaledMix_Pol%d_No%d",pol,i+1)+fitName[iFit]+tofName[itof]+modName[iMod]);
	    tfout->WriteTObject(fHistSignal);
	    tfout->WriteTObject(fHistScaledMix);
	    
	    for(Int_t j=0; j<fHistBasicSame->GetXaxis()->FindBin(0.3); ++j){
	      Double_t same   = fHistSignal->GetBinContent(j);
	      Double_t e_same = fHistSignal->GetBinError(j);
	      Double_t mix    = fHistScaledMix->GetBinContent(j);
	      Double_t e_mix  = fHistScaledMix->GetBinError(j);
	      
	      Double_t signal   = same - mix;
	      Double_t e_signal = sqrt(pow(e_same,2)+pow(e_mix,2));
	      
	      if(same>0){
		signal   = same - mix;
		e_signal = sqrt(pow(e_same,2)+pow(e_mix,2));
	      }
	      else{
		signal   = same;
		e_signal = e_same;
	      }
	      
	      fHistSignal->SetBinContent(j,signal);
	      fHistSignal->SetBinError(j,e_signal);
	    }
	    
	    fHistFinalSignal[i] = (TH1F*)fHistSignal->Clone();
	    fHistFinalSignal[i]->SetTitle(Form("%.2f < #it{p}_{T} %.2f (GeV/c)", bins[i], bins[i+1]));

开发者ID:ktf，项目名称:AliPhysics，代码行数:67，代码来源:MakePi0Analysis.C

注：本文中的TH1F::Multiply方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。