17ROOT.gStyle.SetOptStat(0)

18c1 = ROOT.TCanvas(

"c1",

"fit residual simple")

21h1 = ROOT.TH1D(

"h1",

"h1", 50, -5, 5)

22h1.FillRandom(

"gaus", 2000)

25h1.GetXaxis().SetTitle(

"x")

26h1.GetYaxis().SetTitle(

"y")

28rp1 = ROOT.TRatioPlot(h1)

30rp1.GetLowerRefGraph().SetMinimum(-2)

31rp1.GetLowerRefGraph().SetMaximum(2)