Example macro showing some major probability density functions in ROOT.
The macro shows four of them with respect to their two variables. In order to run the macro type:
root [0] .x mathcoreStatFunc.C
Original tutorial by Andras Zsenei.
import ROOT
f1a = ROOT.TF2("f1a","ROOT::Math::cauchy_pdf(x, y)",0,10,0,10)
f2a = ROOT.TF2("f2a","ROOT::Math::chisquared_pdf(x,y)",0,20, 0,20)
f3a = ROOT.TF2("f3a","ROOT::Math::gaussian_pdf(x,y)",0,10,0,5)
f4a = ROOT.TF2("f4a","ROOT::Math::tdistribution_pdf(x,y)",0,10,0,5)
c1 = ROOT.TCanvas("c1","c1",800,650)
c1.Divide(2,2)
c1.cd(1)
f1a.SetLineWidth(1)
f1a.Draw("surf1")
c1.cd(2)
f2a.SetLineWidth(1)
f2a.Draw("surf1")
c1.cd(3)
f3a.SetLineWidth(1)
f3a.Draw("surf1")
c1.cd(4)
f4a.SetLineWidth(1)
f4a.Draw("surf1")
- Author
- Alberto Ferro
Definition in file pdf002_2d_pdf.py.
