Hello
I am new user to RooFit. I can use RooDataSet::addColoumn(RooAbsArg& var, Bool_t adjustRange = kTRUE) to calculate multiple functions with the given dataset. However, I can’t find a function such as “getColumn(XXX)” to return a column. How can I get a certain column value and store it in a new RooDataSet?
Thanks a lot for your help!
Regards Hao