Hi everyone,
I am performing fits to invariant mass distributions, and the fit is executed via TF1::Fit() with options LREM to have access to MINOS uncertainties (E). Unfortunately the terminal prints out just a single column of the uncertainties, while I am expecting two columns to reflect the asymmetric uncertainties. Is this an issue with verbosity?
Hello,
You can use the option āVā in TH1::Fit to increase the verbosity, but it will print a lot of information. Otherwise, you can print the FitResult objec, which contains information about Minos, by doing
auto result = hist->Fit(function,"S");
result->Print();
Or use as minimiser Minuit2, which is now the default in ROOT 6.30