Hi Gerco,
Thanks for reporting this problem in case one superimpose two histograms
with different ranges and with error bars. Problem now fixed in the
development version.
Rene Brun
Gerco Onderwater wrote:
>
> Hi Rooters,
>
> I experience the following, most likely easily solved problem: When I
> plot the subrange of one histo and plot another one on top of it, the
> second histo doesn't stay within the range of the first one. This only
> happens when the second histo is plotted with error bars (either by giving
> the "e" option when plotting, or when histo2->Sumw2() was used earlier).
>
> I use root version 2.21/08 on a debian Linux PC.
>
> Demo macro:
>
> {
> TH1D* one = new TH1D("one","first one",100,0,1);
> one->FillRandom("pol0");
> one->SetLineColor(1);
> one->GetXaxis()->SetRange(20,30);
> one->Sumw2();
>
> TH1D* two = new TH1D("two","second one",100,0,1);
> two->FillRandom("pol0");
> two->SetLineColor(2);
> two->Sumw2();
>
> one->Draw("");
> two->Draw("same");
> }
>
> -- Gerco
>
> Dr. C.J.G. Onderwater
> Nuclear Physics Laboratory
> 312 Loomis Laboratory of Physics
> University of Illinois at Urbana-Champaign
> 1110 West Green Street
> Urbana, IL 61801-3080
> Phone : (217) 244-7363
> Fax : (217) 333-1215
> E-mail: onderwat@uiuc.edu
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