Dear Rooters Suppose, that I have filled many trees with one branch each for: class MyClass: public TObject { TString fName; Int_t fNum; Double_t fValue; } Now I add all trees to the first tree as friends: TTree *tree = (TTree*)file->Get("T0"); for (Int_t i=1; i<numtrees; i++) { tree->AddFriend("T[i]"); //pseudocode } How do I get the values for the different branches, so that: Int_t entries = (Int_t)(tree->GetEntries()); for (Int_t i=0; i<entries; i++) { tree->GetEntry(i); for (Int_t k=0; i<numtrees; i++) { // pseudocode: name[i][k] = myclass("T[k]")->GetName(); <===??? num[i][k] = myclass("T[k]")->GetNumber(); <===??? value[i][k] = myclass("T[k]")->GetValue(); <===??? } } Thank you in advance for your help. Best regards Christian _._._._._._._._._._._._._._._._ C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a V.i.e.n.n.a A.u.s.t.r.i.a _._._._._._._._._._._._._._._._
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