doc/v634/fillrandom_8py.html

import ROOT


c1 = ROOT.TCanvas("c1","The FillRandom example",200,10,700,900)

pad1 = ROOT.TPad("pad1","The pad with the function",0.05,0.50,0.95,0.95)

pad2 = ROOT.TPad("pad2","The pad with the histogram",0.05,0.05,0.95,0.45)

pad1.Draw()

pad2.Draw()

pad1.cd()

ROOT.gBenchmark.Start("fillrandom")


form1 = ROOT.TFormula("form1","abs(sin(x)/x)")

sqroot = ROOT.TF1("sqroot","x*gaus(0) + [3]*form1",0,10)

sqroot.SetParameters(10,4,1,20)

pad1.SetGridx()

pad1.SetGridy()

pad1.GetFrame().SetBorderMode(-1)

pad1.GetFrame().SetBorderSize(5)

sqroot.SetLineColor(4)

sqroot.SetLineWidth(6)

sqroot.Draw()

lfunction = ROOT.TPaveLabel(5,39,9.8,46,"The sqroot function")

lfunction.Draw()

c1.Update()


pad2.cd()

pad2.GetFrame().SetBorderMode(-1)

pad2.GetFrame().SetBorderSize(5)

h1f = ROOT.TH1F("h1f","Test random numbers",200,0,10)

h1f.SetFillColor(45)

h1f.FillRandom("sqroot",10000)

h1f.Draw()

c1.Update()


f = ROOT.TFile("fillrandom-py.root","RECREATE")

form1.Write()

sqroot.Write()

h1f.Write()

ROOT.gBenchmark.Show("fillrandom")

TRangeDynCast
ROOT::Detail::TRangeCast< T, true > TRangeDynCast
TRangeDynCast is an adapter class that allows the typed iteration through a TCollection.
Definition TCollection.h:358

SetBorderSize
c SetBorderSize(2)