Dear Experts, I have a root file which has a tree, a branch and then leaves. The structure is shown in the picture here: [file]. It seems like I cannot read it simply by using tree->SetBranchAddress. Moreover, the leaves are have dots (.) in their name which is causing problems, eg: "Reconstructe…

I see a few issues in this code: There is an extra trailing space in the string specifying the ROOT file name The C++ identifies, unlike branch names, must not contain dots (e.g., Float_t ReconstructedParticles.p.x is invalid but Float_t px would be ok) You’d only need to change the style of the h…

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Read a Root file with branches

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Wile_E_Coyote September 27, 2021, 9:46am 4

Header files for Trees ROOT

“Most recent” documentation about how to generate and use an “analysis skeleton”: TTree::MakeClass (see also “ROOT User’s Guide” → “Trees” → “Using TTree::MakeClass”) TTree::MakeSelector (see also “ROOT Primer” → “File I/O and Parallel Analysis” → “N-tuples in ROOT” → “For the advanced user: Processing trees with a selector script” and “ROOT User’s Guide” → “Trees” → “Using TTree::MakeSelector” and “ROOT User’s Guide” → “Example Analysis”) TTree::MakeProxy ROOT::RDataFrame (uses the T…

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