Read jagged vectors

[Ferrari]

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Hi,

I’m trying to read a root file that contains vectors of vectors (multiple events, each event has one vector) that look like this:

I don’t know how to read each event because it looks like everything is one vector, how do I read one event at a time? Each entry represents one event.

Thanks!

ROOT Version: 6.22/02
Platform: Ubuntu 20.04

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[Wile_E_Coyote]

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…

[Ferrari]

Really useful, thanks!