Dear all

i try to use TFractionFitter to find the fractions of contribution from different type, i get this error:
Error in TFractionFitter::FindPrediction: Fraction[0] = 0!

I do not understand the problem

Best Regards
Thank for helping

Hi ,

Probably the fitter prefers to have a fraction to be zero. If the component is not relevant, then you should not use it.
I would however, have a running script to understand better your problem

Best Regards