Hi everyone, I have a set of ROOT files, each containing a tree named “Tree” with around 250 branches. The files follow a naming pattern like “File_001.root”, “File_002.root”, and so on. The tree “Tree” has multiple branches as said above, including a Double_t branch named "branchX" and a Double_t …

Correct a TTree is a write-once, read-many time structure. As summarized here Changing the values in the branch - #2 by Wile_E_Coyote Your 4 options are: You could apply your “fixes” when you actually analyze the data (e.g., define some alias “corrected_branch = original_branch - corerection_va…

Replace entries in a single branch only of an existing tree with several branches based on an if condition

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dastudillo September 18, 2024, 6:32am 2