Hi Tommaso, I do not see why you do not get error bars. Could you send me a root file containing your original TH2? Rene Brun Tommaso Chiarusi wrote: > > Hi rooters, I'm trying to do a profile plot from a TH2F histo. > > >From TH2F *sigp I do the following > > TProfile *hprof = sigp->ProfileX(); > > But the result is with no error bars (as you can see in the postscript in > > /afs/cern.ch/user/c/chiarusi/public/ROOT/hprof_with_no_error_bar.ps > > ). > > Since the 2002 I have not been reading any mail concerning such a problem > in the RootTalk > Digest, so I think I'm "drawning in a glass of water!!!". > > Now : > I'm using ROOT 3.01/06. Could it be the reason? > > Cheers, Tommaso > > P.S. TH2D::ProjectionXY is not implemented in this version, is it?
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