23t = ROOT.RooRealVar(
"t",
"t", 0, 5)
24tmin = ROOT.RooRealVar(
"tmin",
"tmin", 0, 0, 5)
27t.setRange(tmin, ROOT.RooFit.RooConst(t.getMax()))
30tau = ROOT.RooRealVar(
"tau",
"tau", -1.54, -10, -0.1)
31model = ROOT.RooExponential(
"model",
"model", t, tau)
37dall = model.generate({t}, 10000)
40tmp = ROOT.RooGaussian(
"gmin",
"gmin", tmin, ROOT.RooFit.RooConst(0), ROOT.RooFit.RooConst(0.5)).generate({tmin}, 5000)
43dacc = model.generate({t}, ProtoData=tmp)
48r = model.fitTo(dacc, Save=
True)
54frame = t.frame(Title=
"Fit to data with per-event acceptance")
55dall.plotOn(frame, MarkerColor=
"r", LineColor=
"r")
62c = ROOT.TCanvas(
"rf314_paramranges",
"rf314_paramranges", 600, 600)
63ROOT.gPad.SetLeftMargin(0.15)
64frame.GetYaxis().SetTitleOffset(1.6)
67c.SaveAs(
"rf314_paramranges.png")