#2. long tail and short tail
h1.Fill(rand.Gaus(0, 0.8))
h2.Fill(rand.Gaus(0, 1))
#hs = ROOT.THStack("hs", "2 example distributions")
#hs.Add(h1)
#hs.Add(h2)
#hs.Draw("nostack")
h1.Draw()
h2.Draw('same')
#draw legend
leg = ROOT.TLegend(0.7, 0.7, 0.89, 0.89)
leg.SetFillColor(0)
leg.AddEntry(h1, h1.GetTitle(), "pl")
leg.AddEntry(h2, h2.GetTitle(), "pl")
leg.Draw()
can.Modified()
can.Update()
gr = qqplot(h1, h2)
gr.SetLineColor(ROOT.kRed + 2)
gr.SetMarkerColor(ROOT.kRed + 2)
gr.SetMarkerStyle(20)
gr.SetTitle("QQ with CL")
gr.GetXaxis().SetTitle(h1.GetTitle())
gr.GetYaxis().SetTitle(h2.GetTitle())
gr.SetFillColor(17)
gr.SetFillStyle(1001)
