Hi Giuseppe, I have no problems in doing that. Which version of Root are you using? Could you send me your Root file? Rene Brun On Fri, 29 Nov 2002, [iso-8859-1] giuseppe.foggi@libero.it wrote: > Hi rooters, > I try add histogram with the following command > > TFile f("CommonTotaleM.root") > TH1F *h = (TH1F*)f.Get("BASE_ALL_M") > h->Add(h) > > but I get > *** Break *** segmentation violation > > Why? > > If I try > > TFile f("CommonTotaleM.root") > TH1F *h = (TH1F*)f.Get("BASE_ALL_M") > h->Draw() > > It displays my histogram, but if after I try to execute the following > command > > h->Add(h) > > I get > Error: Symbol h is not defined in current scope > FILE:/tmp/filensNVWl_cint LINE:1 > *** Interpreter error recovered *** > > Why? > > > Thank you for your help. > Giuseppe. > >
This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:51:21 MET