Hi Rooters, It would be nice to be able to use user defined functions in the Draw function of a tree/ntuple as well, not only in fits or in the constructors of other functions. Is it possible already? I failed to run the following (stupid) code. TNtuple ntuple("ntuple","ntuple","x:y:z"); // fill ntuple here TF1 my_func("my_func","x*x"); TF2 my_selection("my_selection","x+y"); ntuple.Draw("my_func(x):x","my_selection(x,y)>0"); Thanks Daniel
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