Get DeltaR working correctly

gordonwatts / BDTTrainingAnalysisLanguage

Pull from ATLAS EXOT 15 Derivation, columnar data, and flat rootutples with RDF to scikitlearn in one nice fast swoop

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Get DeltaR working correctly #51

Closed gordonwatts closed 5 years ago

gordonwatts commented 5 years ago

How can we properly calculate DeltaR between two sets of eta and phi? Use the ROOT back end? Define something on the fly?

Add function that does the DR work
Update example 3 so it uses DeltaR.

gordonwatts commented 5 years ago

Suggest doing the simplest thing possible for now. Create a math function called DeltaR (eta1, phi1, eta2, phi2) and it calls back into ROOT - which we "know" is right.