I want know the y-limits of a histogram made automatically. I get the values I want when I type interactively c1->cd(3); h->Draw(); gPad->GetFrame()->GetY1(); gPad->GetFrame()->GetY2(); However, when I do it within a macro, I get Y1=0 and Y2=1; I suspect this is due to "gPad" which does not work as I think. So how do I get the y-limits. Robert
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