Hi Rene, Thanks a lot, my histograms were indeed generated with TTree::Draw. Talking about the SetTitle issue, my cvs version was updated yesterday around 2pm, which means it's very close to the cvs head version. I checked recent binaries available on afs, and I can see the SetTitle problem also with : setenv ROOTSYS /afs/cern.ch/sw/root/v3.05.04/rh73_gcc2952/root setenv ROOTSYS /afs/cern.ch/sw/root/v3.05.05/rh73_gcc2952/root yet it's ok in : setenv ROOTSYS /afs/cern.ch/sw/root/v3.04.02/rh72_gcc2953/root I hope this will help. bye, Colin PS : I checked with the histogram in ~cbernet/public/test.root On Wed, 9 Jul 2003, Rene Brun wrote: > Hi Colin, > > Thanks for sending the file. I have found the problem. > Your histogram was very likely generated via TTree::Draw and had still > the automatic rebinning bit set (TH1::kCanRebin). > The TH1 functions Add, Divide, Multiply, Scale process the overflow bin. > When calling TH1::SetBinContent on the overflow bin, the axis limits > were automatically recomputed. > > I have fixed the problem in CVS. Thanks for reporting this problem. > > Concerning the SetTitle, I meant the ROOT CVS head, not your CVS version. > > Rene Brun > > Colin Bernet wrote: > > > > Hi Rene, > > > > with : > > setenv ROOTSYS /afs/cern.ch/compass/delivery/tools/root-cvs/root > > > > I don't have the SetTitle in the menu, and TH1::Scale does not work > > properly. > > > > You can take the histogram in ~cbernet/public/test.root to test it. > > > > cheers, > > Colin > > > > On Tue, 8 Jul 2003, Rene Brun wrote: > > > > > Hi Colin, > > > > > > Colin Bernet wrote: > > > > > > > > Hi all, > > > > > > > > I'm using the cvs version of root on lxplus (updated today), and I noticed something > > > > strange with TH1::Scale : when doing h->Scale(scalefactor), the number of xbins is > > > > mutliplied by 2, and the x range increases (whatever is chosen for > > > > scalefactor). besides this the behaviour of the function is normal. > > > > > > > > > I cannot reproduce this problem. Could you send a script showing the problem? > > > > > > > > > > > Btw I miss a lot a feature from the previous versions : being able to > > > > set the title of an histogram by right-clicking on it on the canvas. > > > > TH1::SetTitle has disappeared from the menu. Is there another way to do > > > > that ? > > > > > > If you use the CVS head, you can use the SetTitle item in the histogram > > > pop-up menu > > > > > > Rene Brun > > > > > > > > > > > Of course I could use a release, but if I remember correctly the last one > > > > has no tab completion on filenames, which is a feature I definitely want > > > > to have. > > > > > > > > Despite these few things, thanks a lot for everything ! > > > > > > > > cheers, > > > > Colin > > > >
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