Hi, htemp is an histogram made by drawing a tree. Why this works fine if I call the methods one by one but more complex expresion fails? Regards, Tomasz Bold root [4] htemp->GetNbinsX() (const Int_t)100 root [5] htemp->GetBinLowEdge(htemp->GetNbinsX()) Error: Symbol htemp is not defined in current scope FILE:(tmpfile) LINE:1 Error: Failed to evaluate htemp->GetNbinsX()Possible candidates are... filename line:size busy function type and name *** Interpreter error recovered *** root [6] htemp->GetBinLowEdge(100) (const Axis_t)4.40550000000000000e+03 -------------------------------------- Tomasz Bold mail me: bold@ftj.agh.edu.pl, Tomasz.Bold@cern.ch Tomasz.Bold@desy.de or call: +48 12 617 4729 (AGH) +48 12 662 8023 (IFJ) -------------------------------------
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