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What is a flat Ntuple

Kenneth Long edited this page Jun 4, 2015 · 2 revisions

flat nTuples refer to TTree branches that are simple data types, e.g. float, int, etc. rather than predefined C++ objects. CMSSW allows ROOT to access complex data types at the expense of loading a Reflex dictionary into ROOT at runtime, and a reduced toolset to operate on them.