Multiple root files addition in a single root file

[Wile_E_Coyote]

Analysis skeleton for a TChain

Hi again guys, sorry for my naive questions. I’m still trying to understand the logic of ROOT. Following my previous topic How to read array variable in a Tree , I create the .h and .C (and modify it) files but I cannot understand how to generalize this to more root file. I followed the indication provided me by one answer of @Wile_E_Coyote and I understood that I need to use TChain and I read on the Manual on how to use it. I understood it how to use but not the connection with the previous…

Header files for Trees

“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…