def makeplot_single(
    h1_sig=None,
    h1_bkg=None,
    h1_data=None,
    sig_legends_=None,
    bkg_legends_=None,
    sig_colors_=None,
    bkg_colors_=None,
    hist_name_=None,
    sig_scale_=1.0,
    dir_name_="plots",
    output_name_=None,
    extraoptions=None
    ):

    if h1_sig ==  None or h1_bkg == None:
        print("nothing to plot...")
        return
    os.system("mkdir -p "+dir_name_)
    os.system("cp index.php "+dir_name_)
    s_color = [632, 617, 839, 800, 1]
    b_color = [920, 2007, 2005, 2003, 2001, 2011]
    if sig_colors_:
        s_color = sig_colors_
    if bkg_colors_:
        b_color = bkg_colors_
    for idx in range(len(h1_sig)):
        h1_sig[idx].SetLineWidth(3)
        h1_sig[idx].SetLineColor(s_color[idx])
    for idx in range(len(h1_bkg)):
        h1_bkg[idx].SetLineWidth(2)
        h1_bkg[idx].SetLineColor(b_color[idx])
        h1_bkg[idx].SetFillColorAlpha(b_color[idx], 1)
    if h1_data:
        h1_data.SetBinErrorOption(1)
        h1_data.SetLineColor(1)
        h1_data.SetLineWidth(2)
        h1_data.SetMarkerColor(1)
        h1_data.SetMarkerStyle(20)

    myC = r.TCanvas("myC","myC", 600, 600)
    myC.SetTicky(1)
    pad1 = r.TPad("pad1","pad1", 0.05, 0.33,0.95, 0.97)
    pad1.SetBottomMargin(0.027)
    pad1.SetRightMargin( rightMargin )
    pad1.SetLeftMargin( leftMargin )
    pad2 = r.TPad("pad2","pad2", 0.05, 0.04, 0.95, 0.31)
    pad2.SetBottomMargin(0.4)
    pad2.SetTopMargin(0.05)
    pad2.SetRightMargin( rightMargin )
    pad2.SetLeftMargin( leftMargin )

    pad2.Draw()
    pad1.Draw()

    pad1.cd()

    for idx in range(len(h1_sig)):
        print("before signal scaling",h1_sig[idx].Integral())
        h1_sig[idx].Scale(sig_scale_)
        print("after signal scaling",h1_sig[idx].Integral())
        
    stack = r.THStack("stack", "stack")
    nS = np.zeros(h1_bkg[0].GetNbinsX())
    eS = np.zeros(h1_bkg[0].GetNbinsX())
    #hist_all is used to make the data/mc ratio. remove signal for the moment due to signal is scaled right now
    hist_all = h1_sig[0].Clone("hist_all")
    hist_all.Scale(0.0)
    hist_s = h1_sig[0].Clone("hist_s")
    hist_b = h1_bkg[0].Clone("hist_b")
    for idx in range(len(h1_bkg)):
        stack.Add(h1_bkg[idx])
        for ib in range(h1_bkg[0].GetNbinsX()):
            nS[ib] += h1_bkg[idx].GetBinContent(ib+1)
            eS[ib] = math.sqrt(eS[ib]*eS[ib] + h1_bkg[idx].GetBinError(ib+1)*h1_bkg[idx].GetBinError(ib+1))
        hist_all.Add(h1_bkg[idx]) 
        if idx > 0:
            hist_b.Add(h1_bkg[idx]) 
            
    for idx in range(len(h1_sig)):
        print("ggH signal yield: ", hist_s.Integral())
        if idx > 0:
            hist_temp = h1_sig[idx].Clone(h1_sig[idx].GetName()+"_temp")
            #hist_all.Add(hist_temp)
            hist_s.Add(h1_sig[idx])
        print("all signal yield: ", hist_s.Integral())

    stack.SetTitle("")
    
    maxY = 0.0
    if "stack_signal" in extraoptions and extraoptions["stack_signal"]:
        for idx in range(len(h1_sig)):
            h1_sig[idx].SetFillColorAlpha(s_color[idx], 1)
            stack.Add(h1_sig[idx])
            for ib in range(h1_bkg[0].GetNbinsX()):
                nS[ib] += h1_sig[idx].GetBinContent(ib+1)
                eS[ib] = math.sqrt(eS[ib]*eS[ib] + h1_sig[idx].GetBinError(ib+1)*h1_sig[idx].GetBinError(ib+1))
        if stack.GetMaximum() > maxY:
            maxY = stack.GetMaximum()
        #if "SR" in h.GetTitle(): 
        stack.Draw("hist")
    else:
        stack.Draw("hist")
        if stack.GetMaximum() > maxY:
            maxY = stack.GetMaximum()
        for idx in range(len(h1_sig)):
            if h1_sig[idx].GetMaximum() > maxY:
                maxY = h1_sig[idx].GetMaximum()
            if "SR" in h1_bkg[0].GetTitle():
                #h1_sig[idx].Draw("samehist")
                hist_s.Draw("samehist")

    ##draw  stack total unc on top of total histogram
    box = r.TBox(0,0,1,1,)
    box.SetFillStyle(3002)
    box.SetLineWidth(0)
    box.SetFillColor(r.kBlack)
    for idx in range(h1_bkg[0].GetNbinsX()):
        box.DrawBox(h1_bkg[0].GetBinCenter(idx+1)-0.5*h1_bkg[0].GetBinWidth(idx+1), nS[idx]-eS[idx], h1_bkg[0].GetBinCenter(idx+1)+0.5*h1_bkg[0].GetBinWidth(idx+1), nS[idx]+eS[idx])

    if h1_data:
        if h1_data.GetMaximum() > maxY:
            maxY = h1_data.GetMaximum()+np.sqrt(h1_data.GetMaximum())
        #if not "SR" in h1_data.GetTitle() or "fail" in h1_data.GetTitle():  
        if True:
            #print("debug h1_data.GetName()",h1_data.GetName(), h1_data.GetTitle())           
            TGraph_data = TGraphAsymmErrors(h1_data)
            for i in range(TGraph_data.GetN()):
                #data point
                var_x, var_y = Double(0.), Double(0.)
                TGraph_data.GetPoint(i,var_x,var_y)    
                if np.fabs(var_y) < 1e-5:
                    TGraph_data.SetPoint(i,var_x,-1.0)
                    TGraph_data.SetPointEYlow(i,-1)
                    TGraph_data.SetPointEYhigh(i,-1)
                    #print("zero bins in the data TGraph: bin",i+1)
                else:
                    TGraph_data.SetPoint(i,var_x,var_y)
                    err_low = var_y - (0.5*TMath.ChisquareQuantile(0.1586555,2.*var_y))
                    TGraph_data.SetPointEYlow(i, var_y - (0.5*TMath.ChisquareQuantile(0.1586555,2.*var_y)))
                    TGraph_data.SetPointEYhigh(i, (0.5*TMath.ChisquareQuantile(1.-0.1586555,2.*(var_y+1))) - var_y)
        
            TGraph_data.SetMarkerColor(1)
            TGraph_data.SetMarkerSize(1)
            TGraph_data.SetMarkerStyle(20)
            TGraph_data.Draw("same P")

    stack.GetYaxis().SetTitle("Events")
    stack.GetYaxis().SetTitleOffset(1.05)
    stack.GetYaxis().SetTitleSize(0.08)
    stack.GetYaxis().SetLabelSize(0.06)
    #stack.GetYaxis().CenterTitle()
    stack.GetXaxis().SetLabelSize(0.)
    #stack.GetXaxis().SetLabelOffset(0.013)
    #if "xaxis_range" in extraoptions:
    #    stack.GetXaxis().SetRangeUser(float(extraoptions["xaxis_range"][0]),float(extraoptions["xaxis_range"][1]))

    leg = r.TLegend(0.2, 0.60, 0.9, 0.88)
    leg.SetNColumns(3)
    leg.SetFillStyle(0)
    leg.SetBorderSize(0)
    leg.SetTextFont(42)
    leg.SetTextSize(0.05)
    for idx in range(len(h1_bkg)):
        leg.AddEntry(h1_bkg[idx], bkg_legends_[idx], "F")
    if "SR" in hist_s.GetTitle():
        leg.AddEntry(hist_s, 'HH #times {:1.2}'.format(sig_scale_), "L")

    leg.AddEntry(box, "Total  unc", "F")
    if h1_data:
        leg.AddEntry(h1_data, "Data", "ep")
    leg.Draw()

    pad2.cd()
    pad2.SetGridy(1)
    
    ratio = None
    ratio_Low  = 0.0
    ratio_High  = 4
    
    if h1_data:      
        ratio = TGraphAsymmErrors(h1_data)
        for i in range(ratio.GetN()):
            
            #bkg prediction
            imc = Double(hist_all.GetBinContent(i+1))
            #data point
            var_x, var_y = Double(0.), Double(0.)
            if not ("SR" in h1_data.GetTitle() and (i>5 and i<9)):
            	ratio.GetPoint(i,var_x,var_y)    
            if var_y == 0.:
                ratio.SetPoint(i,var_x,-1.0)
                ratio.SetPointEYlow(i,-1)
                ratio.SetPointEYhigh(i,-1)
                continue
            ratio.SetPoint(i,var_x,var_y/imc)
            err_low = (var_y - (0.5*TMath.ChisquareQuantile(0.1586555,2.*var_y)))/imc
            err_high = ((0.5*TMath.ChisquareQuantile(1.-0.1586555,2.*(var_y+1))) - var_y)/imc
            ratio.SetPointEYlow(i, err_low)
            ratio.SetPointEYhigh(i, err_high)
        
        ratio.SetMarkerColor(1)
        ratio.SetMarkerSize(1)
        ratio.SetMarkerStyle(20)
        ratio.GetXaxis().SetTitle("j_{2} regressed mass [GeV]")
        #myC.Update()
        
        if "ratio_range" in extraoptions:
            ratio_Low = extraoptions["ratio_range"][0]
            ratio_High = extraoptions["ratio_range"][1]
        ratio.GetYaxis().SetTitle("data/mc")
        ratio.GetYaxis().SetRangeUser(ratio_Low, ratio_High)
        ratio.GetXaxis().SetRangeUser(50, 220)
        ratio.SetTitle("")
        ratio.Draw("same AP")
        pad2.Update()
        
        print(ratio.GetTitle(),ratio.GetName(),"debug")
    else:
        ratio = h1_sig[0].Clone("ratio")
        ratio_High = 0.0
        for ibin in range(1,ratio.GetNbinsX()+1):
            s = hist_s.GetBinContent(ibin) 
            b = hist_b.GetBinContent(ibin)
            L = 0.0
            if b > 0.0:
                L = s/math.sqrt(b)
                if L > ratio_High:
                    ratio_High = L
            ratio.SetBinContent(ibin, L)
        if ratio_High > 1.0:
            ratio_High = 1.0
        ratio.GetYaxis().SetRangeUser(ratio_Low, ratio_High*1.2)
        ratio.GetYaxis().SetTitle("S/#sqrt{B}")
        ratio.Draw("samehist")
    ratio.SetLineColor(1)
    ratio.SetLineWidth(2)
    ratio.SetMarkerStyle(20)
    ratio.SetMarkerColor(1)
    ratio.SetFillColorAlpha(1, 0)
    ratio.GetXaxis().SetTitleOffset(0.94)
    ratio.GetXaxis().SetTitleSize(0.18)
    ratio.GetXaxis().SetLabelSize(0.12)
    ratio.GetXaxis().SetLabelOffset(0.013)
    ratio.GetYaxis().SetTitleOffset(0.40)
    ratio.GetYaxis().SetTitleSize(0.17)
    ratio.GetYaxis().SetLabelSize(0.13)
    ratio.GetYaxis().SetTickLength(0.01)
    ratio.GetYaxis().SetNdivisions(505)
    #if "xaxis_range" in extraoptions:
    #    ratio.GetXaxis().SetRangeUser(float(extraoptions["xaxis_range"][0]),float(extraoptions["xaxis_range"][1]))

    #draw  stack total unc on the ratio plot to present the background uncertainty
    box_ratio = r.TBox(0,0,1,1,)
    box_ratio.SetFillStyle(3002)
    box_ratio.SetLineWidth(0)
    box_ratio.SetFillColor(r.kBlack)
    for idx in range(h1_bkg[0].GetNbinsX()):
        if np.fabs(nS[idx])> 1e-06: 
            box_ratio.DrawBox(h1_bkg[0].GetBinCenter(idx+1)-0.5*h1_bkg[0].GetBinWidth(idx+1), (nS[idx]-eS[idx])/nS[idx], h1_bkg[0].GetBinCenter(idx+1)+0.5*h1_bkg[0].GetBinWidth(idx+1), (nS[idx]+eS[idx])/nS[idx])
        else:
            print("blinded Higgs peak region") 
    
    if "xaxis_label" in extraoptions and extraoptions["xaxis_label"] != None:
        x_title = extraoptions["xaxis_label"]
        ratio.GetXaxis().SetTitle(x_title)
    ratio.GetYaxis().CenterTitle()

    ##########draw CMS preliminary
    pad1.cd()
    tex1 = r.TLatex(leftMargin, 0.91, "CMS")
    tex1.SetNDC()
    tex1.SetTextFont(61)
    tex1.SetTextSize(0.070)
    tex1.SetLineWidth(2)
    tex1.Draw()
    tex2 = r.TLatex(leftMargin+0.12,0.912,"Internal")
    tex2.SetNDC()
    tex2.SetTextFont(52)
    tex2.SetTextSize(0.055)
    tex2.SetLineWidth(2)
    tex2.Draw()

    lumi_value = 137
    if "lumi_value" in extraoptions:
        lumi_value = extraoptions["lumi_value"]
    tex3 = r.TLatex(0.72,0.912,"%d"%lumi_value+" fb^{-1} (13 TeV)")
    tex3.SetNDC()
    tex3.SetTextFont(42)
    tex3.SetTextSize(0.055)
    tex3.SetLineWidth(2)
    tex3.Draw()
    outFile = dir_name_
    if output_name_:
        outFile = outFile + "/" +output_name_
    else:
        outFile = outFile + "/" + hist_name_

    #print("maxY = "+str(maxY))
    stack.SetMaximum(maxY*1.7)

    #print everything into txt file
    text_file = open(outFile+"_linY.txt", "w")
    text_file.write("bin    |   x    ")
    for idx in range(len(h1_bkg)):
        text_file.write(" | %21s"%bkg_legends_[idx])
    text_file.write(" | %21s"%("total B"))
    for idx in range(len(sig_legends_)):
        text_file.write(" | %25s"%sig_legends_[idx])
    if h1_data:
        text_file.write(" | data | data/mc")
    text_file.write("\n-------------")
    for idx in range(24*(len(h1_bkg) + 1)+ 29*len(sig_legends_)):
        text_file.write("-")
    if h1_data:
        text_file.write("-------")
    text_file.write("\n")
    for ibin in range(0,h1_sig[0].GetNbinsX()+1):
        text_file.write("%3d"%ibin+"   ")
        text_file.write(" | %6.3f"%h1_data.GetBinCenter(ibin)+" ")
        for idx in range(len(h1_bkg)):
            text_file.write(" | %7.3f "%h1_bkg[idx].GetBinContent(ibin)+"$\\pm$"+ " %7.3f"%h1_bkg[idx].GetBinError(ibin))
        text_file.write(" | %7.3f "%hist_b.GetBinContent(ibin)+"$\\pm$"+ " %7.3f"%hist_b.GetBinError(ibin))
        for idx in range(len(sig_legends_)):
            text_file.write(" | %9.3f "%h1_sig[idx].GetBinContent(ibin)+"$\\pm$"+ " %9.3f"%h1_sig[idx].GetBinError(ibin))
        if h1_data:
            text_file.write(" | %d"%h1_data.GetBinContent(ibin) +  " | %7.3f "%h1_data.GetBinContent(ibin) +"$\\pm$"+ " %7.3f"%h1_data.GetBinError(ibin))
        text_file.write("\n\n")
        
    #print yield table for AN
    text_file.write("print yield table for AN\n")
    bkg_all = 0
    bkg_all_errsq = 0
    for idx in range(len(h1_bkg)):
        bkg_tmp = h1_bkg[idx].GetBinContent(7)+h1_bkg[idx].GetBinContent(8)+h1_bkg[idx].GetBinContent(9)
        bkg_errsq_tmp = h1_bkg[idx].GetBinError(7)*h1_bkg[idx].GetBinError(7)+h1_bkg[idx].GetBinError(8)*h1_bkg[idx].GetBinError(8)+h1_bkg[idx].GetBinError(9)*h1_bkg[idx].GetBinError(9)
        bkg_all += bkg_tmp
        bkg_all_errsq += bkg_errsq_tmp
        text_file.write("%s"%(bkg_legends_[idx])+"& %7.2f"%(bkg_tmp)+"$\\pm$"+ "%7.2f"%np.sqrt(bkg_errsq_tmp)+"\n")
    text_file.write("total background & %7.2f"%(bkg_all)+"$\\pm$"+ "%7.2f"%np.sqrt(bkg_all_errsq)+"\n")
    
    text_file.write("\ggHH SM ($\kapl=1$) & %7.2f"%((h1_sig[0].GetBinContent(7)+h1_sig[0].GetBinContent(8)+h1_sig[0].GetBinContent(9))/sig_scale_)+"$\\pm$"+ "%7.1f"%(sig_scale_*np.sqrt(h1_sig[0].GetBinError(7)*h1_sig[0].GetBinError(7)+h1_sig[0].GetBinError(8)*h1_sig[0].GetBinError(8)+h1_sig[0].GetBinError(9)*h1_sig[0].GetBinError(9)))+"\n")
    text_file.write("\VBFHH SM ($\kapl=1$) & %7.2f"%((h1_sig[1].GetBinContent(7)+h1_sig[1].GetBinContent(8)+h1_sig[1].GetBinContent(9))/sig_scale_)+"$\\pm$"+ "%7.1f"%(sig_scale_*np.sqrt(h1_sig[1].GetBinError(7)*h1_sig[1].GetBinError(7)+h1_sig[1].GetBinError(8)*h1_sig[1].GetBinError(8)+h1_sig[1].GetBinError(9)*h1_sig[1].GetBinError(9)))+"\n")
    
    text_file.write("HH bin 8 value %s"%h1_sig[0].GetBinContent(8)+"\n")
    text_file.write("HH bin 9 value %s"%h1_sig[0].GetBinContent(9)+"\n")
    text_file.write("HH bin 7 value %s"%h1_sig[0].GetBinContent(7)+"\n")

    text_file.write("HH bin 8 error %s"%h1_sig[0].GetBinError(8)+"\n")
    text_file.write("HH bin 9 error %s"%h1_sig[0].GetBinError(9)+"\n")
    text_file.write("HH bin 7 error %s"%h1_sig[0].GetBinError(7)+"\n")
    
    text_file.write("total & %7.2f"%(bkg_all+(h1_sig[0].GetBinContent(7)+h1_sig[0].GetBinContent(8)+h1_sig[0].GetBinContent(9)+h1_sig[1].GetBinContent(7)+h1_sig[1].GetBinContent(8)+h1_sig[1].GetBinContent(9))/sig_scale_)+"$\\pm$"+ "%7.2f"%(np.sqrt((h1_sig[0].GetBinError(7)*h1_sig[0].GetBinError(7)+h1_sig[0].GetBinError(8)*h1_sig[0].GetBinError(8)+h1_sig[0].GetBinError(9)*h1_sig[0].GetBinError(9))/(sig_scale_*sig_scale_)+(h1_sig[1].GetBinError(7)*h1_sig[1].GetBinError(7)+h1_sig[1].GetBinError(8)*h1_sig[1].GetBinError(8)+h1_sig[1].GetBinError(9)*h1_sig[1].GetBinError(9))/(sig_scale_*sig_scale_)+bkg_all_errsq))+"\n")
    
    text_file.close()
    os.system("cp "+outFile+"_linY.txt "+outFile+"_logY.txt")

    pad1.RedrawAxis()
    myC.SaveAs(outFile+"_linY.png")
    myC.SaveAs(outFile+"_linY.pdf")
    myC.SaveAs(outFile+"_linY.C")
    pad1.cd()
    stack.SetMaximum(maxY*100.0)
    stack.SetMinimum(0.5)
    pad1.SetLogy()
    pad1.RedrawAxis()
    myC.SaveAs(outFile+"_logY.png")
    myC.SaveAs(outFile+"_logY.pdf")
    myC.SaveAs(outFile+"_logY.C")
    #save histogram and ratio to root file
    outFile_root = r.TFile(outFile+".root", "recreate")
    outFile_root.cd()
    for idx in range(len(h1_bkg)):
        h1_bkg[idx].Write()
    for idx in range(len(sig_legends_)):
        h1_sig[idx].Write()
    if  h1_data:
        h1_data.Write()
        ratio.Write()
    #outFile_root.Write()
    outFile_root.Close()
def plotDataOverMCEff(hist_mc_tight,
                      hist_mc_loose,
                      hist_data_tight,
                      hist_data_loose,
                      plot_name='fakerate.pdf'):

    g = TGraphAsymmErrors(hist_mc_tight)
    g.Divide(hist_mc_tight, hist_mc_loose)
    g.GetYaxis().SetTitle('Fake rate')
    g.GetXaxis().SetTitle(hist_mc_tight.GetXaxis().GetTitle())
    g.GetYaxis().SetTitleOffset(1.2)
    g.GetYaxis().SetTitleOffset(1.3)

    g.SetLineColor(2)
    g.SetMarkerColor(2)

    g_data = TGraphAsymmErrors(hist_data_tight)
    g_data.Divide(hist_data_tight, hist_data_loose)
    g_data.GetYaxis().SetTitle('Fake rate')
    g_data.GetXaxis().SetTitle(hist_data_tight.GetXaxis().GetTitle())
    g_data.GetYaxis().SetTitleOffset(1.2)
    g_data.GetYaxis().SetTitleOffset(1.3)
    g_data.SetMarkerColor(1)

    g_vals = g.GetY()
    g_data_vals = g_data.GetY()

    g_ratio = g_data.Clone('ratio')

    for i in xrange(g_data.GetN()):
        ratio = g_data_vals[i] / g_vals[i] if g_vals[i] else 0.
        g_ratio.SetPoint(i, g.GetX()[i], ratio)

        rel_y_low = math.sqrt((g_data.GetErrorYlow(i) / g_data_vals[i])**2 + (
            g.GetErrorYlow(i) /
            g_vals[i])**2) if g_data_vals[i] > 0. and g_vals[i] > 0. else 0.

        g_ratio.SetPointEYlow(i, rel_y_low * ratio)

        rel_y_high = math.sqrt(
            (g_data.GetErrorYhigh(i) / g_data_vals[i])**2 +
            (g.GetErrorYhigh(i) /
             g_vals[i])**2) if g_data_vals[i] > 0. and g_vals[i] > 0. else 0.

        g_ratio.SetPointEYhigh(i, rel_y_high * ratio)

    # Gymnastics to get same label sizes etc in ratio and main plot
    ytp_ratio = 2.
    xtp_ratio = 2.

    # hr.GetYaxis().SetNdivisions(4)

    g_ratio.GetYaxis().SetTitleSize(g.GetYaxis().GetTitleSize() * xtp_ratio)
    g_ratio.GetXaxis().SetTitleSize(g.GetXaxis().GetTitleSize() * ytp_ratio)

    g_ratio.GetYaxis().SetTitleOffset(g.GetYaxis().GetTitleOffset() /
                                      xtp_ratio)
    g_ratio.GetXaxis().SetTitleOffset(
        g.GetXaxis().GetTitleOffset())  # / ytp_ratio)

    g_ratio.GetYaxis().SetLabelSize(g.GetYaxis().GetLabelSize() * xtp_ratio)
    g_ratio.GetXaxis().SetLabelSize(g.GetXaxis().GetLabelSize() * ytp_ratio)

    g_data.GetXaxis().SetLabelColor(0)
    g_data.GetXaxis().SetLabelSize(0)
    g.GetXaxis().SetLabelColor(0)
    g.GetXaxis().SetLabelSize(0)

    g_ratio.GetXaxis().SetTitle(g.GetXaxis().GetTitle())

    # maxy = 1.1 * min(g.GetMaximum(), g_data.GetMaximum(), 0.2)
    g.GetYaxis().SetRangeUser(0.001, 0.2)

    cv, pad, padr = HistDrawer.buildCanvas()

    pad.cd()

    g.Draw('AP')
    g_data.Draw('P')

    legend = TLegend(0.23, 0.73, 0.43, 0.91)
    legend.SetFillColor(0)
    legend.SetFillStyle(0)
    legend.SetLineColor(0)
    legend.SetLineWidth(0)

    legend.AddEntry(g.GetName(), 'MC', 'lep')
    legend.AddEntry(g_data.GetName(), 'Observed', 'lep')

    legend.Draw()

    padr.cd()
    g_ratio.GetYaxis().SetRangeUser(0.51, 1.49)
    g_ratio.GetYaxis().SetTitle('Obs/MC')
    g_ratio.Draw('AP')

    drawRatioLines(g_ratio)

    cv.Print(plot_name)
Exemple #3
0
def plotDataOverMCEff(hist_mc_tight, hist_mc_loose, hist_data_tight, hist_data_loose, plot_name='fakerate.pdf', mc_leg='MC', obs_leg='Observed', ratio_leg='Obs/MC'):

    g = TGraphAsymmErrors(hist_mc_tight)
    g.Divide(hist_mc_tight, hist_mc_loose)
    g.GetYaxis().SetTitle('Misidentification rate')
    g.GetXaxis().SetTitle(hist_mc_tight.GetXaxis().GetTitle())
    g.GetYaxis().SetTitleOffset(1.2)
    g.GetYaxis().SetTitleOffset(1.3)

    g.SetLineColor(2)
    g.SetMarkerColor(2)

    g_data = TGraphAsymmErrors(hist_data_tight)
    g_data.Divide(hist_data_tight, hist_data_loose)

    # if g_data.GetN() != hist_data_tight.GetNbinsX():
    #     import pdb; pdb.set_trace()

    g_data.GetYaxis().SetTitle('Misidentification rate')
    g_data.GetXaxis().SetTitle(hist_data_tight.GetXaxis().GetTitle())
    g_data.GetYaxis().SetTitleOffset(1.2)
    g_data.GetYaxis().SetTitleOffset(1.3)
    g_data.SetMarkerColor(1)

    g_vals = g.GetY()
    g_data_vals = g_data.GetY()

    g_ratio = g_data.Clone('ratio')

    for i in xrange(g_data.GetN()):
        ratio = g_data_vals[i]/g_vals[i] if g_vals[i] else 0.
        g_ratio.SetPoint(i, g.GetX()[i], ratio)

        rel_y_low = math.sqrt((g_data.GetErrorYlow(i)/g_data_vals[i])**2 + (g.GetErrorYlow(i)/g_vals[i])**2) if g_data_vals[i] > 0. and g_vals[i] > 0. else 0.

        g_ratio.SetPointEYlow(i, rel_y_low * ratio)

        rel_y_high = math.sqrt((g_data.GetErrorYhigh(i)/g_data_vals[i])**2 + (g.GetErrorYhigh(i)/g_vals[i])**2) if g_data_vals[i] > 0. and g_vals[i] > 0. else 0.

        g_ratio.SetPointEYhigh(i, rel_y_high * ratio)

    # Gymnastics to get same label sizes etc in ratio and main plot
    ytp_ratio = 2.
    xtp_ratio = 2.

    # hr.GetYaxis().SetNdivisions(4)

    g_ratio.GetYaxis().SetTitleSize(g.GetYaxis().GetTitleSize() * xtp_ratio)
    g_ratio.GetXaxis().SetTitleSize(g.GetXaxis().GetTitleSize() * ytp_ratio)

    g_ratio.GetYaxis().SetTitleOffset(g.GetYaxis().GetTitleOffset() / xtp_ratio)
    g_ratio.GetXaxis().SetTitleOffset(g.GetXaxis().GetTitleOffset())  # / ytp_ratio)

    g_ratio.GetYaxis().SetLabelSize(g.GetYaxis().GetLabelSize() * xtp_ratio)
    g_ratio.GetXaxis().SetLabelSize(g.GetXaxis().GetLabelSize() * ytp_ratio)

    g_data.GetXaxis().SetLabelColor(0)
    g_data.GetXaxis().SetLabelSize(0)
    g.GetXaxis().SetLabelColor(0)
    g.GetXaxis().SetLabelSize(0)

    g_ratio.GetXaxis().SetTitle(g.GetXaxis().GetTitle())

    maxy = 1.3 * max(g.GetMaximum(), g_data.GetMaximum(), 0.05)
    g.GetYaxis().SetRangeUser(0.0011, maxy)

    cv, pad, padr = HistDrawer.buildCanvas()

    pad.cd()

    g.Draw('AP')
    g_data.Draw('P')

    legend = TLegend(0.23, 0.73, 0.43, 0.91)
    legend.SetFillColor(0)
    legend.SetFillStyle(0)
    legend.SetLineColor(0)
    legend.SetLineWidth(0)

    legend.AddEntry(g.GetName(), mc_leg, 'lep')
    legend.AddEntry(g_data.GetName(), obs_leg, 'lep')

    legend.Draw()

    padr.cd()
    g_ratio.GetYaxis().SetRangeUser(0.01, 1.99)
    g_ratio.GetYaxis().SetTitle(ratio_leg)
    g_ratio.Draw('AP')

    drawRatioLines(g_ratio)

    cv.Print(plot_name)

    g.GetYaxis().SetRangeUser(0.0001, 1)
    pad.SetLogy(True)
    cv.Print(plot_name.replace('.', '_log.'))
    f = ROOT.TFile(plot_name.replace('.', '_log.').replace('.pdf', '.root'), 'RECREATE')
    g.Write()
    g_data.Write()
    cv.Write()
    f.Close()