Probably a question for @eguiraud.
Everything I’m doing with RDF right now is defining a set of functions that I compile within a ROOT dictionary and load them in python.
Each of the function is self defined and does not need to access globally defined members.
Now I’d like to evaluate a MVA inside such function, but I would not think instantiating the MVA each time within the function (that will be called for each event) is the way to go.
Are they good recommended practices to define global static stuff that would be called only one, like one would do with a class constructor?