Documentation on bitmap for RDataFrame Snapshot with variations



Hello all. When saving an RDF Snapshot with variations, there’s a “bitmask for each event, indicating which variations are valid”.

Unfortunately, it’s not really documented anywhere how the bitmask maps to the nominal and the different variations. I think it’d be an important addition to the documentation in case users need to check this manually.

Thank you !

Welcome to the ROOT forum!
Let’s invite @vpadulan