Analysis tree name starting with an integer + TChain

[Ahmed Marwan Foda]

Hi,

I am using analysis trees from version05 2pi0pimpip. I can use prooflite manager to run on a single file but When I use a mcaro to run ProofLite with a TChain grouping many files I get the error

Error in <TDSet::Process>: not a correctly initialized TDSet

which I believe is caused by the tree name starting with an integer "2pi0pimpip_Tree". Any Ideas on how to overcome that ?

Thank you.

Cheers, Ahmed.

[Paul Mattione]

I don't know why this would be happening with a TChain. I do know that
starting with a # would give you problems if you were doing this (in
ROOT interactive environment):

root -l myfile.root
2pi0pimpip_Tree->Process("DSelector_my.C+");

Instead, you would need to do this:

root -l myfile.root
TTree* locTree = (TTree*)gDirectory->Get("2pi0pimpip_Tree");
locTree->Process("DSelector_my.C+");

Now again, I don't know why you're having problems with a TChain; I use
TChain's with the DPROOFLiteManager and I've never had any problems with
trees starting with a #. But maybe it's related to the above.

- Paul

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