Maybe I'm dummy, I''ve created a out.root file with 50 histograms in it. Name like : Q2_1.605 etc etc. If I try to read them with the browes I can do it, but from the command line I cannot: I do TFile a("out.root"); a.ls(); and I get the right list. then if I try Q2_1.955->Draw(); I get : root [4] Q2_1.955->Draw(); Error: No symbol Q2_1.955->Draw() in current scope FILE:/tmp/fileCarAcr_cint LINE:1 Possible candidates are... filename line:size busy function type and name *** Interpreter error recovered *** What's going on? Thanks a lot, Maurizio Ungaro
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