C++ TH1::SetMaximum方法代码示例

void showGraph(double canvasSizeX, double canvasSizeY,
	       TGraph* graph, 
	       bool useLogScaleX, double xMin, double xMax, const std::string& xAxisTitle, double xAxisOffset,
	       bool useLogScaleY, double yMin, double yMax, const std::string& yAxisTitle, double yAxisOffset,
	       const std::string& outputFileName)
{
  TCanvas* canvas = new TCanvas("canvas", "canvas", canvasSizeX, canvasSizeY);
  canvas->SetFillColor(10);
  canvas->SetBorderSize(2); 
  canvas->SetTopMargin(0.05);
  canvas->SetLeftMargin(0.19);
  canvas->SetBottomMargin(0.19);
  canvas->SetRightMargin(0.05);
  canvas->SetLogx(useLogScaleX);
  canvas->SetLogy(useLogScaleY);

  TH1* dummyHistogram = new TH1D("dummyHistogram", "dummyHistogram", 10, xMin, xMax);
  dummyHistogram->SetTitle("");
  dummyHistogram->SetStats(false);
  dummyHistogram->SetMinimum(yMin);
  dummyHistogram->SetMaximum(yMax);
  dummyHistogram->Draw("axis");

  TAxis* xAxis = dummyHistogram->GetXaxis();
  xAxis->SetTitle(xAxisTitle.data());
  xAxis->SetTitleOffset(xAxisOffset);
  xAxis->SetTitleSize(0.065);
  xAxis->SetLabelSize(0.055);
  xAxis->SetLabelOffset(0.01);
  xAxis->SetTickLength(0.055);
  xAxis->SetNdivisions(505);

  TAxis* yAxis = dummyHistogram->GetYaxis();
  yAxis->SetTitle(yAxisTitle.data());
  yAxis->SetTitleOffset(yAxisOffset);
  yAxis->SetTitleSize(0.070);
  yAxis->SetLabelSize(0.055);
  yAxis->SetLabelOffset(0.01);
  yAxis->SetTickLength(0.055);
  yAxis->SetNdivisions(505);

  graph->SetMarkerColor(1);
  graph->SetLineColor(1);
  graph->Draw("p");

  canvas->Update();
  size_t idx = outputFileName.find_last_of('.');
  std::string outputFileName_plot = std::string(outputFileName, 0, idx);
  if ( useLogScaleY ) outputFileName_plot.append("_log");
  else outputFileName_plot.append("_linear");
  if ( idx != std::string::npos ) canvas->Print(std::string(outputFileName_plot).append(std::string(outputFileName, idx)).data());
  canvas->Print(std::string(outputFileName_plot).append(".png").data());
  //canvas->Print(std::string(outputFileName_plot).append(".pdf").data());
  //canvas->Print(std::string(outputFileName_plot).append(".root").data());
  
  delete dummyHistogram;
  delete canvas;  
}

void DrawHijing2GeV()
{
  TCanvas *c1 = new TCanvas();
TFile *fin = TFile::Open("Gamma_Neutron_Hijing_Energy_Graphs.root");
gROOT->cd();
TH1 *h1lim = new TH1F("h1lim","",1,0,0.1);
TH1 *hjbkg = (TH1 *) fin->Get("hjbkg")->Clone();
TGraph *anti_neutron2GeV = (TGraph *) fin->Get("anti_neutron2GeV")->Clone();
TGraph *neutron2GeV = (TGraph *) fin->Get("neutron2GeV")->Clone();
h1lim->SetStats(0);
h1lim->SetMaximum(0.3);
h1lim->SetTitle("2 GeV Hadronic Showers with HIJING background");
h1lim->GetYaxis()->SetTitle("Deposited Energey [GeV]");
h1lim->GetYaxis()->SetTitleOffset(1.2);
h1lim->GetXaxis()->SetTitle("cone size (#sqrt{#Delta#Phi^{2}+#Delta#Theta^{2}})");
h1lim->GetXaxis()->SetTitleOffset(1.2);
h1lim->Draw();
hjbkg->SetStats(0);
hjbkg->SetLineColor(6);
hjbkg->SetMaximum(5.5);
hjbkg->SetLineWidth(2);
hjbkg->Draw("same");
anti_neutron2GeV->SetLineColor(4);
anti_neutron2GeV->SetLineWidth(2);
anti_neutron2GeV->Draw("same");
neutron2GeV->SetLineColor(2);
neutron2GeV->SetLineWidth(2);
neutron2GeV->Draw("same");
TLine *tl = new TLine();
tl->SetLineStyle(2);
tl->DrawLine(0.024,0,0.024,0.3);
TLegend *legrda = new TLegend(0.67,0.34,0.87,0.54,NULL,"brNDC");
  legrda->SetLineColor(1);
  legrda->SetLineStyle(1);
  legrda->SetLineWidth(1);
  legrda->SetFillColor(10);
  legrda->SetFillStyle(1001);
  legrda->SetBorderSize(0);
//  legrda->SetTextSize(labelsize);
  legrda->AddEntry(hjbkg,"HIJING bkg"); 
  legrda->AddEntry(anti_neutron2GeV,"2 GeV Anti Neutron","l"); 
  legrda->AddEntry(neutron2GeV,"2 GeV Neutron", "l"); 
  legrda->AddEntry(tl,"EMCal tower size","l"); 
  legrda->Draw();
 
fin->Close();
c1->Print("Hijing2GeV.png");
}

TH1 *computeEffVsCut(TH1 *discrShape, double total)
{
	TH1 *h = discrShape->Clone(Form("%s_effVsCut", discrShape->GetName()));
	h->Sumw2();
	h->SetMaximum(1.5);
	h->SetMinimum(1e-3);

	unsigned int n = h->GetNbinsX();
	for(unsigned int bin = 1; bin <= n; bin++) {
		double efficiency = h->Integral(bin, n + 1) / total;
		double error = sqrt(efficiency * (1 - efficiency) / total);
		h->SetBinContent(bin, efficiency);
		h->SetBinError(bin, error);
	}

	return h;
}

TCanvas* DrawNP(int np, TObjArray* harr, TCanvas* cnv)
{
  if (!harr) harr = &histoArr;
  if (!cnv) cnv = new TCanvas(Form("cnv%d",np),Form("cnv%d",np),900,700);
  cnv->Clear();
  cnv->Divide(2,1);
  cnv->cd(1);
  //
  TH1* dxodd = (TH1*)harr->At(np*10+kDTXodd);
  TH1* dxevn = (TH1*)harr->At(np*10+kDTXeven);
  TH1* dxoddS =(TH1*)harr->At(np*10+kDTXoddSPL);
  TH1* dxevnS =(TH1*)harr->At(np*10+kDTXevenSPL);
  double max = TMath::Max(dxodd->GetMaximum(),dxevn->GetMaximum());
  dxodd->SetMaximum(1.1*max);
  dxodd->GetXaxis()->SetTitle("#DeltaX, #mum");
  dxodd->SetTitle(Form("#DeltaX for clSize=%d",np));
  dxodd->Fit("gaus","","");
  dxevn->Fit("gaus","","sames");
  //
  dxoddS->Draw("sames");
  dxevnS->Draw("sames");
  //
  gPad->Modified();
  gPad->Update();
  SetStPadPos(dxodd,0.75,0.97,0.8,1., -1,dxodd->GetLineColor());
  SetStPadPos(dxevn,0.75,0.97,0.6,0.8, -1,dxevn->GetLineColor());
  SetStPadPos(dxoddS,0.75,0.97,0.4,0.6, -1,dxoddS->GetLineColor());
  SetStPadPos(dxevnS,0.75,0.97,0.2,0.4, -1,dxevnS->GetLineColor());
  //
  cnv->cd(2);
  TH1* dz  = (TH1*)harr->At(np*10+kDTZ);
  dz->SetTitle(Form("#DeltaZ for clSize=%d",np));
  dz->GetXaxis()->SetTitle("#DeltaZ, #mum");
  dz->Fit("gaus");
  TH1* dzS = (TH1*)harr->At(np*10+kDTZSPL);
  dz->Draw("sames");
  gPad->Modified();
  gPad->Update();
  SetStPadPos(dz,0.75,0.97,0.8,1., -1, dz->GetLineColor());
  SetStPadPos(dzS,0.75,0.97,0.5,0.7, -1, dzS->GetLineColor());
  gPad->Modified();
  gPad->Update();
  //
  cnv->cd();
  return cnv;
}

void annconvergencetest( TDirectory *lhdir )
{
   TCanvas* c = new TCanvas( "MLPConvergenceTest", "MLP Convergence Test", 150, 0, 600, 580*0.8 ); 
  
   TH1* estimatorHistTrain = (TH1*)lhdir->Get( "estimatorHistTrain" );
   TH1* estimatorHistTest  = (TH1*)lhdir->Get( "estimatorHistTest"  );

   Double_t m1  = estimatorHistTrain->GetMaximum();
   Double_t m2  = estimatorHistTest ->GetMaximum();
   Double_t max = TMath::Max( m1, m2 );
   m1  = estimatorHistTrain->GetMinimum();
   m2  = estimatorHistTest ->GetMinimum();
   Double_t min = TMath::Min( m1, m2 );
   estimatorHistTrain->SetMaximum( max + 0.1*(max - min) );
   estimatorHistTrain->SetMinimum( min - 0.1*(max - min) );
   estimatorHistTrain->SetLineColor( 2 );
   estimatorHistTrain->SetLineWidth( 2 );
   estimatorHistTrain->SetTitle( TString("MLP Convergence Test") );
  
   estimatorHistTest->SetLineColor( 4 );
   estimatorHistTest->SetLineWidth( 2 );

   estimatorHistTrain->GetXaxis()->SetTitle( "Epochs" );
   estimatorHistTrain->GetYaxis()->SetTitle( "Estimator" );
   estimatorHistTrain->GetXaxis()->SetTitleOffset( 1.20 );
   estimatorHistTrain->GetYaxis()->SetTitleOffset( 1.65 );

   estimatorHistTrain->Draw();
   estimatorHistTest ->Draw("same");

   // need a legend
   TLegend *legend= new TLegend( 1 - c->GetRightMargin() - 0.45, 1-c->GetTopMargin() - 0.20, 
                                 1 - c->GetRightMargin() - 0.05, 1-c->GetTopMargin() - 0.05 );

   legend->AddEntry(estimatorHistTrain,"Training Sample","l");
   legend->AddEntry(estimatorHistTest,"Test sample","l");
   legend->Draw("same");
   legend->SetMargin( 0.3 );

   c->cd();
   TMVAGlob::plot_logo(); // don't understand why this doesn't work ... :-(
   c->Update();

   TString fname = "plots/annconvergencetest";
   TMVAGlob::imgconv( c, fname );
}

void
TestShaping(int max=4)
{
  TArrayI adcs(10);
  TGraph* orig = new TGraph(adcs.fN);
  orig->SetName("Original");
  orig->SetTitle("Original");
  orig->SetMarkerStyle(25);
  orig->SetMarkerColor(1);
  orig->SetMarkerSize(2);
  orig->SetLineColor(1);
  for (Int_t i = 0; i < adcs.fN; i++) { 
    adcs.fArray[i] = Int_t(gRandom->Uniform(0, 1023));
    orig->SetPoint(i, i, adcs.fArray[i]);
  }

  TCanvas* c = new TCanvas("c", "c");
  c->SetFillColor(0);
  c->SetTopMargin(.02);
  c->SetRightMargin(.02);
  
  TH1* h = new TH1F("frame","frame", adcs.fN+1, -2, adcs.fN);
  h->SetMinimum(0);
  h->SetMaximum(1300);
  h->SetStats(0);
  h->Draw("");
  orig->Draw("pl same");

  TLegend* l = new TLegend(adcs.fN*3./4, 1023, adcs.fN, 1300, "", "");
  l->SetFillColor(0);
  l->SetBorderSize(1);
  l->AddEntry(orig, orig->GetTitle(), "lp");
  
  for (int i = 1; i <= max; i++) {
    TGraph* g = makeGraph(adcs, i);
    g->Draw("pl same");
    l->AddEntry(g, g->GetTitle(), "lp");
  }
  l->Draw();
  
  c->Modified();
  c->Update();
  c->cd();
}

TH1 *computeEffVsBEff(TH1 *effVsCut, TH1 *effVsCutB)
{
	TH1 *h = new TH1F(Form("%s_effVsBEff", effVsCut->GetName()), "effVsBEff",
	                  100, 0, 1);
	h->SetMaximum(1.5);
	h->SetMinimum(1e-3);

	unsigned int n = effVsCut->GetNbinsX();
	for(unsigned int bin = 1; bin <= n; bin++) {
		double eff = effVsCut->GetBinContent(bin);
		double error = effVsCut->GetBinError(bin);
		double effB = effVsCutB->GetBinContent(bin);

		h->SetBinContent(h->FindBin(effB), eff);
		h->SetBinError(h->FindBin(effB), error);
 		// FIXME: The error in effB is not propagated
	}

	return h;
}

void boostcontrolplots( TDirectory *boostdir ) {

   const Int_t nPlots = 4;

   Int_t width  = 900;
   Int_t height = 600;
   char cn[100];
   const TString titName = boostdir->GetName();
   sprintf( cn, "cv_%s", titName.Data() );
   TCanvas *c = new TCanvas( cn,  Form( "%s Control Plots", titName.Data() ),
                             width, height ); 
   c->Divide(2,2);


   const TString titName = boostdir->GetName();

   TString hname[nPlots]={"Booster_BoostWeight","Booster_MethodWeight","Booster_ErrFraction","Booster_OrigErrFraction"};

   for (Int_t i=0; i<nPlots; i++){
      Int_t color = 4; 
      TPad * cPad = (TPad*)c->cd(i+1);
      TH1 *h = (TH1*) boostdir->Get(hname[i]);
      TString plotname = h->GetName();
      h->SetMaximum(h->GetMaximum()*1.3);
      h->SetMinimum( 0 );
      h->SetMarkerColor(color);
      h->SetMarkerSize( 0.7 );
      h->SetMarkerStyle( 24 );
      h->SetLineWidth(1);
      h->SetLineColor(color);
      h->Draw();
      c->Update();
   }

   // write to file
   TString fname = Form( "plots/%s_ControlPlots", titName.Data() );
   TMVAGlob::imgconv( c, fname );
   
}

TH1* getMonitorElement(TFile* inputFile, const TString& dqmDirectory, const char* dqmSubDirectory, const TString& meName)
{
  TString meName_full = TString("DQMData").Append("/");
  if ( dqmDirectory != "") meName_full.Append(dqmDirectory).Append("/");
  meName_full.Append(dqmSubDirectory).Append("/").Append(meName);
  std::cout << "meName_full = " << meName_full << std::endl;
  
  TH1* me = (TH1*)inputFile->Get(meName_full);
  std::cout << "me = " << me <<  std::endl;
  
  //if ( !me->GetSumw2() ) me->Sumw2();
  me->Sumw2();

  me->Rebin(2);

  me->Scale(1./me->Integral());

  me->SetMaximum(1.);
  me->SetStats(false);

  return me;
}

void drawTimeDifference (TDirectory* directory, TH1* refHisto, const char* fname=0)
{
  TGraphErrors* graphX = (TGraphErrors*)directory->Get("x");
  if ( graphX==0 )  return;
  TH1I* hFirst = (TH1I*)directory->Get("firstTime");
  TH1I* hLast = (TH1I*)directory->Get("lastTime");
  if ( hFirst==0 || hLast==0 )  return;

  std::string fullName("cDeltaT");
  if ( fname )  fullName += fname;
  else  fullName += directory->GetName();
  TCanvas* c = new TCanvas(fullName.c_str(),fullName.c_str());
  TH1* h = refHisto->Clone("DeltaT");
  h->Reset();
  h->SetTitle("DeltaT");

  TGraph* graph = new TGraph();
  graph->SetName("gDeltaT");

  double xg,yg;
  for ( unsigned int i=1; i<=hFirst->GetNbinsX(); ++i ) {
    std::time_t t1 = hFirst->GetAt(i);
    std::time_t t2 = hLast->GetAt(i);
    TTimeStamp ts1(hFirst->GetAt(i));
    std::cout << "Fit started at " << ts1.AsString() << std::endl;
    graphX->GetPoint(i-1,xg,yg);
    graph->SetPoint(i-1,xg,difftime(t2,t1));
  }

  double xmin,xmax,ymin,ymax;
  graph->ComputeRange(xmin,ymin,xmax,ymax);
  h->SetMinimum(0.);
  h->SetMaximum((ymax+ymin)/2.+2.*(ymax-ymin)/2.);
  h->Draw();
  graph->SetMarkerStyle(20);
//   graph->SetMarkerColor(2);
//   graph->SetLineColor(2);
  graph->Draw("P");
}

void axesStyle(TH1& hist, const char* titleX, const char* titleY, float yMin, float yMax, float yTitleSize, float yTitleOffset) 
{
  hist.SetTitle("");
  hist.GetXaxis()->SetTitle(titleX);
  hist.GetXaxis()->CenterTitle();
  hist.GetXaxis()->SetTitleSize  ( 0.06);
  hist.GetXaxis()->SetTitleColor (    1);
  hist.GetXaxis()->SetTitleOffset(  1.0);
  hist.GetXaxis()->SetTitleFont  (   62);
  hist.GetXaxis()->SetLabelSize  ( 0.05);
  hist.GetXaxis()->SetLabelFont  (   62);
  hist.GetXaxis()->SetNdivisions (  505);
  hist.GetYaxis()->SetTitle(titleY);
  hist.GetYaxis()->SetTitleSize  ( yTitleSize );
  hist.GetYaxis()->SetTitleColor (    1);
  hist.GetYaxis()->SetTitleOffset(yTitleOffset);
  hist.GetYaxis()->SetTitleFont  (   62);
  hist.GetYaxis()->SetLabelSize  ( 0.04);
  hist.GetYaxis()->SetLabelFont  (   62);
  hist.GetYaxis()->CenterTitle   ( true);
  if(yMin!=-123) hist.SetMinimum(yMin);
  if(yMax!=-123) hist.SetMaximum(yMax);
}

void drawEventDifference (TDirectory* directory, TH1* refHisto, const char* fname=0)
{
  TGraphErrors* graphX = (TGraphErrors*)directory->Get("x");
  if ( graphX==0 )  return;
  TH1I* hFirst = (TH1I*)directory->Get("firstEvent");
  TH1I* hLast = (TH1I*)directory->Get("lastEvent");
  if ( hFirst==0 || hLast==0 )  return;

  std::string fullName("cDeltaE");
  if ( fname )  fullName += fname;
  else  fullName += directory->GetName();
  TCanvas* c = new TCanvas(fullName.c_str(),fullName.c_str());
  TH1* h = refHisto->Clone("DeltaE");
  h->Reset();
  h->SetTitle("DeltaE");

  TGraph* graph = new TGraph();
  graph->SetName("gDeltaE");

  double xg,yg;
  for ( unsigned int i=1; i<=hFirst->GetNbinsX(); ++i ) {
    int e1 = hFirst->GetAt(i);
    int e2 = hLast->GetAt(i);
    graphX->GetPoint(i-1,xg,yg);
    graph->SetPoint(i-1,xg,e2-e1);
  }

  double xmin,xmax,ymin,ymax;
  graph->ComputeRange(xmin,ymin,xmax,ymax);
  h->SetMinimum(0.);
  h->SetMaximum((ymax+ymin)/2.+2.*(ymax-ymin)/2.);
  h->Draw();
  graph->SetMarkerStyle(20);
//   graph->SetMarkerColor(2);
//   graph->SetLineColor(2);
  graph->Draw("P");
}

TCanvas* example_plot( int iPeriod, int iPos )
{ 
  //  if( iPos==0 ) relPosX = 0.12;

  int W = 800;
  int H = 600;

  // 
  // Simple example of macro: plot with CMS name and lumi text
  //  (this script does not pretend to work in all configurations)
  // iPeriod = 1*(0/1 7 TeV) + 2*(0/1 8 TeV)  + 4*(0/1 13 TeV) 
  // For instance: 
  //               iPeriod = 3 means: 7 TeV + 8 TeV
  //               iPeriod = 7 means: 7 TeV + 8 TeV + 13 TeV 
  // Initiated by: Gautier Hamel de Monchenault (Saclay)
  // Updated by:   Dinko Ferencek (Rutgers)
  //
  int H_ref = 600; 
  int W_ref = 800; 

  // references for T, B, L, R
  float T = 0.08*H_ref;
  float B = 0.12*H_ref; 
  float L = 0.12*W_ref;
  float R = 0.04*W_ref;

  TString canvName = "FigExample_";
  canvName += W;
  canvName += "-";
  canvName += H;
  canvName += "_";  
  canvName += iPeriod;
  if( writeExtraText ) canvName += "-prelim";
  if( iPos%10==0 ) canvName += "-out";
  else if( iPos%10==1 ) canvName += "-left";
  else if( iPos%10==2 )  canvName += "-center";
  else if( iPos%10==3 )  canvName += "-right";

  TCanvas* canv = new TCanvas(canvName,canvName,50,50,W,H);
  canv->SetFillColor(0);
  canv->SetBorderMode(0);
  canv->SetFrameFillStyle(0);
  canv->SetFrameBorderMode(0);
  canv->SetLeftMargin( L/W );
  canv->SetRightMargin( R/W );
  canv->SetTopMargin( T/H );
  canv->SetBottomMargin( B/H );
  canv->SetTickx(0);
  canv->SetTicky(0);

  TH1* h = new TH1F("h","h",40,70,110);
  h->GetXaxis()->SetNdivisions(6,5,0);
  h->GetXaxis()->SetTitle("m_{e^{+}e^{-}} (GeV)");  
  h->GetYaxis()->SetNdivisions(6,5,0);
  h->GetYaxis()->SetTitleOffset(1);
  h->GetYaxis()->SetTitle("Events / 0.5 GeV");  

  h->SetMaximum( 260 );
  if( iPos==1 ) h->SetMaximum( 300 );
  h->Draw();

  int histLineColor = kOrange+7;
  int histFillColor = kOrange-2;
  float markerSize  = 1.0;

  {
    TLatex latex;
				
    int n_ = 2;

    float x1_l = 0.92;
    float y1_l = 0.60;

    float dx_l = 0.30;
    float dy_l = 0.18;
    float x0_l = x1_l-dx_l;
    float y0_l = y1_l-dy_l;

    TPad* legend = new TPad("legend_0","legend_0",x0_l,y0_l,x1_l, y1_l );
    //    legend->SetFillColor( kGray );
    legend->Draw();
    legend->cd();
		
    float ar_l = dy_l/dx_l;
		
    float x_l[1];
    float ex_l[1];
    float y_l[1];
    float ey_l[1];
		
    //    float gap_ = 0.09/ar_l;
    float gap_ = 1./(n_+1);
		
    float bwx_ = 0.12;
    float bwy_ = gap_/1.5;
		
    x_l[0] = 1.2*bwx_;
    //    y_l[0] = 1-(1-0.10)/ar_l;
    y_l[0] = 1-gap_;
    ex_l[0] = 0;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
  double ptSystXlow_npjpsi[]      = {0.81, 0.97, 1.32, 3.52};
  double ptSystXhigh_npjpsi[]     = {0.69, 1.03, 1.68, 13.48};

  TGraphErrors *pgRaa_npjpsi          = new TGraphErrors(4, ptBins_npjpsi, raa_npjpsi, ptError_npjpsi, raaStat_npjpsi);
  TGraphAsymmErrors *pgRaaSyst_npjpsi = new TGraphAsymmErrors(4, ptBins_npjpsi, raa_npjpsi, ptSystXlow_npjpsi,ptSystXhigh_npjpsi,raaSyst_npjpsi,raaSyst_npjpsi);
  pgRaa_npjpsi->SetName("pgRaa_npjpsi");
  pgRaa_npjpsi->SetMarkerStyle(29);
  pgRaa_npjpsi->SetMarkerSize(1.2);
  pgRaa_npjpsi->SetMarkerColor(kRed);
  
  //systm error
  pgRaaSyst_npjpsi->SetName("pgRaaSyst_npjpsi");
  // pgRaaSyst_npjpsi->SetFillColor(TColor::GetColor("#ee7711"));
  pgRaaSyst_npjpsi->SetFillColor(TColor::GetColor("#ba8a98"));
  
  
  //---------------------------------------------------------
  // lumi uncert.
  TBox *box = new TBox(0.9,0.9568966,2,1.043103);
  box->SetFillColor(kGray+1);
  box->SetFillStyle(1001);
  

  TBox *box_lin = new TBox(0.9,0.9568966,10,1.043103);
  box_lin->SetFillColor(kGray+1);
  box_lin->SetFillStyle(1001);
  
  //------------------------ single pannel:
  
  TCanvas *pc = new TCanvas("pc","pc");
  TH1 *phAxis = new TH1D("phAxis",";p_{T} (m_{T}) [GeV];R_{AA}",1,0.9,300);
  phAxis->GetYaxis()->CenterTitle(true);
  phAxis->SetMinimum(0.);
  phAxis->SetMaximum(2.5);
  gPad->SetLogx();
  phAxis->Draw("");
  
  // drawing order:
  // A)  stat boxes:
  pgRaaSyst_photon->Draw("2");
  pgRaaSyst_npjpsi->Draw("2");
  pgRaaSyst_h->Draw("2");
  pgRaaSyst_z->Draw("2");
  pgRaaSyst_w->Draw("2");
  pgRaaSyst_bjet->Draw("2");
  pgRaaSyst_jet->Draw("2");
  //nominal+stat
  // photon
  pgRaa_photon->Draw("P z");
  pgRaa_z->Draw("P z");
  pgRaa_w->Draw("P z");
  pgRaa_h->Draw("P z");
  pgRaa_npjpsi->Draw("P z");
  pgRaa_bjet->Draw("P z");
  pgRaa_jet->Draw("P z");

  TLine *line = new TLine(0.9,1,300,1);
  line->SetLineStyle(7);
  line->Draw();
  //box->Draw();
  // // legends and writings:

  TLegend *leg = new TLegend(0.05,0.87,0.39,0.95,NULL,"brNDC");
  leg->SetBorderSize(0);
  leg->SetTextFont(62);
  leg->SetTextSize(0.029);

//.........这里部分代码省略.........
    //either last sample or ~ sample followed by non ~ sample
    if (isLastOfSerie) {
       if (xlowVec != 0) {
         for (int iBin = 1; iBin <= nBins; iBin++) hist[theHistCounter]->SetBinError  (iBin,hist[theHistCounter]->GetBinError(iBin)/hist[theHistCounter]->GetBinWidth(iBin));
         for (int iBin = 1; iBin <= nBins; iBin++) hist[theHistCounter]->SetBinContent(iBin,hist[theHistCounter]->GetBinContent(iBin)/hist[theHistCounter]->GetBinWidth(iBin));
       }
       hs -> Add(hist[theHistCounter]);
       theHistCounter++;
    }
    
  }//end loop on samples

  //Fix the legend
  for (int iHisto = theHistCounter-1; iHisto >= 0; iHisto--) {
    leg -> AddEntry(hist[iHisto], theLegends[iHisto], "f");   
  }
  
  //get the maximum to properly set the frame
  float theMax = hdata -> GetBinContent(hdata -> GetMaximumBin()) + hdata -> GetBinError(hdata -> GetMaximumBin());
  TH1* theMCSum = (TH1*) hs->GetStack()->Last();
  float theMaxMC = theMCSum->GetBinContent(theMCSum->GetMaximumBin()) + theMCSum->GetBinError(theMCSum->GetMaximumBin());
  if (theMaxMC > theMax) theMax = theMaxMC;
  
  //prepare the ratio band and plot
  TH1* theMCRatioBand = makeRatioBand(theMCSum);
  TH1* theRatioPlot = makeRatioPlot(hdata,theMCSum);
    
  TCanvas* can = new TCanvas();
  can -> SetLogy(isLog);
  
  TPad *pad1 = new TPad("pad1","top pad",0,0.30,1,1);
  pad1->SetBottomMargin(0.02);
  pad1->SetLeftMargin(0.13);
  pad1->Draw();
  TPad *pad2 = new TPad("pad2","bottom pad",0,0.0,1,0.30);
  pad2->SetTopMargin(0.02);
  pad2->SetLeftMargin(0.13);
  pad2->SetBottomMargin(0.4);
  pad2->SetGridy();
  pad2->Draw();
  
  pad1->cd();
  hs->Draw("hist");
  hdata->Draw("same,pe");
  if (drawSignal) hsignal->Draw("same,hist");
  if (drawLegend) leg->Draw("same");
  //hs->GetXaxis()->SetTitle(myAxisNameX);
  hs->GetYaxis()->SetTitle(myAxisNameY);
  hs->GetXaxis()->SetLabelSize(0.04);
  hs->GetYaxis()->SetLabelSize(0.04);
  hs->GetXaxis()->SetLabelOffset(0.025);
  hs->GetYaxis()->SetLabelOffset(0.035);
  //hs->GetXaxis()->SetTitleOffset(1.1);
  hs->GetYaxis()->SetTitleOffset(1.1);
  hs->SetMaximum(theMax);
  if (isLog) hs->SetMinimum(0.01);
  
  pad2->cd();
  theMCRatioBand->GetXaxis()->SetTitle(myAxisNameX);
  theMCRatioBand->GetXaxis()->SetTitleSize(0.16);
  theMCRatioBand->GetXaxis()->SetTitleOffset(1.1);
  theMCRatioBand->GetXaxis()->SetLabelSize(0.12);
  theMCRatioBand->GetXaxis()->SetLabelOffset(0.07);
  theMCRatioBand->GetYaxis()->SetTitle("Data/MC");
  theMCRatioBand->GetYaxis()->SetTitleSize(0.10);
  theMCRatioBand->GetYaxis()->SetTitleOffset(0.6);
  theMCRatioBand->GetYaxis()->SetLabelSize(0.06);
  theMCRatioBand->GetYaxis()->SetLabelOffset(0.03);
  theMCRatioBand->SetFillStyle(3001);
  theMCRatioBand->SetFillColor(kBlue);
  theMCRatioBand->SetLineWidth(1);
  theMCRatioBand->SetLineColor(kBlack);
  theMCRatioBand->SetMarkerSize(0.1);
  theMCRatioBand->SetMaximum(4.);
  theMCRatioBand->SetMinimum(0.);
  theMCRatioBand->Draw("E2");
  TLine *line = new TLine(xLow,1,xHigh,1);
  line->SetLineColor(kBlack);
  line->Draw("same");
  theRatioPlot->Draw("same,pe");
  
  can->cd();
  can->Modified();
  can -> SaveAs(myName + ".pdf","pdf");
  
  //cleanup the memory allocation
  delete theMCSum;
  delete hs;
  delete leg;
  delete hdata;
  delete pad1;
  delete pad2;
  delete can;
  delete theMCRatioBand;
  delete theRatioPlot;
  infile -> Close();
  delete infile;
  
  return;
}