Hello, The draw-option "L" doesn't seem to work if Sumw2() on the histogram is set. This is what happens: [root] TH1F* h = afile->Get("a_histo"); [root] h->Draw("L") (looks right, line is drawn) [root] h->Sumw2() [root] h->Draw("L") (line is *not* drawn) Am I doing something wrong, or is there maybe a way around this? I would like to draw the histogram with the options "E3" and "L", and I create it with TH1F::Divide, so I really need to set Sumw2. I guess I could copy the final histogram to a new histogram by setting the bin content and errors manually bin by bin, then draw the new histogram. I'm using root 3.03/09 on Linux RH6. Regards, Paul Balm
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