Change y-axis range

[yburkard]

Dear Users,

I have a very simple question on how to change the y-axis range of a histogram plot. I have tried TH1D.GetYaxis().SetRange(), TH1D.GetYaxis().SetRangeUser(), TH1D.SetMaximum but none of them have an effect on my plot. I have also tried calling these commands in different lines. Here is my code:

canvas = TCanvas("Histogram", "Histogram", 100, 200, 700, 500)
canvas.cd()
hist1.Draw("Hist")
hist2.Draw("same")
hist1.GetYaxis().SetTitle("Frequency")
hist1.GetXaxis().SetTitle("m_{T}")
#Here is what I've tried:
#hist1.SetMaximum(150.)
#hist1.GetYaxis().SetRange(0.,150.)
#hist1.GetYaxis().SetRangeUser(0.,150.)
canvas.Clear()

Both hist1 and hist2 are TH1D objects. Does anyone know what I’m doing wrong?

[Wile_E_Coyote]

Try: hist1.SetAxisRange(0., 150., 'Y'); canvas.Modified(); canvas.Update()