Dear all, I am having the following problem when reading a tree: I would like to change the name of a branch: TFile *myfile = new TFile(pathData + dataFile,"READ"); TTree *data_Weighted = (TTree*) myfile->Get("data_Weighted"); Double_t varX, varY; data_Weighted->SetBranchAddress("Low_s31_s23_DTF",…

Hi @Diego , indeed, as @couet suggests, the way to set new names for your branches is via TTree::SetAlias . That use of SetBranchAddress is just telling TTree to read the values of "Low_s31_s23_DTF" and "High_s31_s23_DTF" into C++ variables varX and varY, but it’s not creating new branches or aliase…

Perfect! It works. Thanks! Diego

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Problem with SetBranchAddress

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couet July 27, 2020, 12:02pm 2

Rename Branch ROOT

Dear supporters, one branch in my tree is made from a TClonesArray of objects of a certein class “tracks”. According to the split level, this results in a number of sub-braches each containing a single leaf. Both the leaf and the sub-branch for a variable x have names “tracks.x” and titles “x[tracks_]”. Unfortunately the variable names in this class are not very informative. Can I change the names of my sub-branches? Can I say: What must I take into account? Must sub-branch and leaf necessar…

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