Access Likelihood/chi2 FCN in minuit, PyROOT


I have created a customised function, to fit to my data, but I am having trouble accessing the likelihood/chi2 as a function of my parameter(s) in minuit. I cant seem to find any guide on this anywhere (I’m using python), so how do I get the Likelihood/chi2 function, and fill it into a histogram in an interval of values of x corresponding to my parameter?


ROOT Version: ROOT/6.06.08/x86_64-slc6-gcc49-opt

@moneta, maybe can you please help here? Thank you!

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