Hi Paul,
Do:
h->Draw("e2");
h->Draw("l hist same")
Rene Brun
On Fri, 29 Nov 2002, Paul Balm wrote:
> Hi,
>
> Thanks for the quick answer, but this doesn't work in combination with
> the option "E2":
> h->Draw("L HIST")
> works correctly, but
> h->Draw("L E2 HIST")
> or
> h->Draw("L E2")
>
> do not show the line.
> Regards,
>
> Paul
>
>
>
> Rene Brun wrote:
>
> >Hi Paul,
> >
> >Do:
> >
> >h->Draw("l hist")
> >
> >Rene Brun
> >
> >On Fri, 29 Nov 2002, Paul Balm wrote:
> >
> >
> >
> >>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 "E2" 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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