Hello, I do not succeed in getting the maximum of the Y axis of a THStack. I have a table THStack* m_hstack[6]; I fill it (with several TH1F*), draw it, then I do: cout<<m_hstack[i]->GetYaxis()->GetXmax()<<endl; and I get "1" (instead of about 50) ! Actually, when I do cout<<m_hstack[i]->GetYaxis()->GetNbins()<<endl; I get "1" too (and also for GetBinWidth(1)). For the X axis, I do not have this problem. If it's the right method, have somebody an idea of my problem ? Else, how can I get this maximum ? Thank you. Matthieu Lechowski I use on lxplus at cern: /afs/cern.ch/sw/root/v3.05.05/rh73_gcc2952/root
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