Interpolation strategy for the NP variation in HistFactory

Roofit and RooStats
1

Dear Experts,

I would like know that it is possible to have a custom Interpolation strategy for the NP variation in HistFactory.
Few alternatives can be tried with InterpCode=X, but can this be generalized?
I would like to use a user-defined interpolation in HistFactory, if possible.

Thanks!

2

Hi,

This is possible only by modifying the code in the FlexibleInterpVar and/or PiecewiseInterpolation class. You would need to modify the evaluate() function and implement there a new interpolation method

Lorenzo