Hi Christian,
As I am not sure to understand your question (or what you want to do),
I can only give a naive answer
fTree = (TTree*)gDirectory->Get("Tree1");
fTree->AddFriend("Tree2", "file2.root");
fTree->AddFriend("Tree3", "file3.root");
fTree->AddFriend("Tree4", "file4.root");
aTree = (TTree*)gDirectory->Get("TreeA");
aTree->AddFriend("TreeB", "fileB.root");
aTree->AddFriend("TreeC", "fileC.root");
Rene Brun
cstrato wrote:
>
> Dear Rooters
>
> Suppose that I have a tree with following friends:
> fTree = (TTree*)gDirectory->Get("Tree1");
> fTree->AddFriend("Tree2", "file2.root");
> fTree->AddFriend("Tree3", "file3.root");
> fTree->AddFriend("TreeA", "fileA.root");
> fTree->AddFriend("Tree4", "file4.root");
> fTree->AddFriend("TreeB", "fileB.root");
> fTree->AddFriend("TreeC", "fileC.root");
>
> How can I separate fTree into the following two treefriends:
> 1, fTree("Tree1") with friends Tree2, Tree3, Tree4
> 2, aTree("TreeA") with friends TreeB, TreeC
>
> Thank you in advance for your help.
>
> Best regards
> Christian
> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
> C.h.r.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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