I am using a “line3Dfit.C” macro to perform 3D linear fits (see the link below). I guess the variable which gives the goodness of the fit is MinFcnValue(), right? What is the exact meaning of this? And how proceed to get the chi2 instead?
Thanks for answering. I already tried to replace “result.MinFcnValue()” by “result.Chi2()” in my code and I get always “-1” as result. This is the problem.