Hello,
I want to fit a number of histograms with an option “I”. My fit function calculation is slow (it is a numerical integral of another non analytical function). So the fitting is very slow with the default “epsilon” (TF1::Integral parameter). Can I choose what value of “epsilon” should be used during fitting with the “I” option?
Or maybe there is some other way to control the numerical precision of integration when the option “I” is used during fitting?
I hope it is clear what I mean
Thank you very much,
Siarhei.