On Tue, 7 Aug 2001, Chejeck subatech etudiant polonais wrote: > > Hello, > > I have a litle problem. I take two histograms from two different files > *.root, and I'd like to have these ones one the same graph to compare > them. Maybe it's very easy what I'm asking but I spent few hours, I'was > looking for help on root's sites, but I didn't find it. Hi, This is what you may want: <<< File smalltest.C { TFile file1("data1.root"); file1.cd(); TH1 *h1 = (TH1*)gROOT->FindObject("myHisto1"); h1->Draw(); TFile file2("data2.root"); file2.cd(); TH1 *h2 = (TH1*)gROOT->FindObject("myHisto1"); h2->Draw("same"); } >>> Yannick
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