26ROOT.RooClassFactory.makePdf(
"MyPdfV1",
"x,A,B")
35ROOT.RooClassFactory.makePdf(
36 "MyPdfV2",
"x,A,B",
"",
"A*fabs(x)+pow(x-B,2)")
46ROOT.RooClassFactory.makePdf(
50 "A*fabs(x)+pow(x-B,2)",
53 "x:(A/2)*(pow(x.max(rangeName),2)+pow(x.min(rangeName),2))+(1./3)*(pow(x.max(rangeName)-B,3)-pow(x.min(rangeName)-B,3))")
59ROOT.gROOT.ProcessLineSync(
".x MyPdfV3.cxx+")
62a = ROOT.RooRealVar(
"a",
"a", 1)
63b = ROOT.RooRealVar(
"b",
"b", 2, -10, 10)
64y = ROOT.RooRealVar(
"y",
"y", -10, 10)
65pdf = ROOT.MyPdfV3(
"pdf",
"pdf", y, a, b)
68frame1 = y.frame(ROOT.RooFit.Title(
"Compiled class MyPdfV3"))
69data = pdf.generate(ROOT.RooArgSet(y), 1000)
79x = ROOT.RooRealVar(
"x",
"x", -20, 20)
85alpha = ROOT.RooRealVar(
"alpha",
"alpha", 5, 0.1, 10)
86genpdf = ROOT.RooClassFactory.makePdfInstance(
88 "(1+0.1*fabs(x)+sin(sqrt(fabs(x*alpha+0.1))))",
94data2 = genpdf.generate(ROOT.RooArgSet(x), 50000)
100frame2 = x.frame(ROOT.RooFit.Title(
"Compiled version of pdf of rf103"))
105c = ROOT.TCanvas(
"rf104_classfactory",
"rf104_classfactory", 800, 400)
108ROOT.gPad.SetLeftMargin(0.15)
109frame1.GetYaxis().SetTitleOffset(1.4)
112ROOT.gPad.SetLeftMargin(0.15)
113frame2.GetYaxis().SetTitleOffset(1.4)
116c.SaveAs(
"rf104_classfactory.png")