Dear All,
I would like to fit a histogram with a reversed Crystal Ball function : having one tail on the higher rather than the lower side.
Is there anyway to do this in Roofit?
Dear All,
I would like to fit a histogram with a reversed Crystal Ball function : having one tail on the higher rather than the lower side.
Is there anyway to do this in Roofit?
Hi,
as fas as I known you have to use a negative value of the transition point (alpha) between the gaussian and the power law tail
Hey,
It worked perfectly with the negative value of alpha. Thank you for the tip
Simon