Hi,
I'm using root version 3.02/07 and have some problems with the
TChain::AddFriend method.
In absolute accordance with the example in the users guide i do:
TChain nu("h100");
nu.Add("file1.root"); // file1 contains one tree named h100
TChain nufriend("tfriend");
nufriend.Add("friendfile.root"); // friendfile contains one tree named
// tfriend
nu.AddFriend("tfriend"); //then gives the message:
Warning in <TChain::AddFriend>: Unknown TChain tfriend
and trying to access any variable contained in the friedfile
[eg by nu.Draw("any_friend_variable")] results in:
*** Break *** segmentation violation
The individual trees are OK. [I can access them by h100/tfriend.Draw(...)]
Could anybody tell me what goes wrong ?
Thanks in advance
Henrike
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