[#1] INFO:NumericIntegration -- RooRealIntegral::init(genpdf_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x) [#1] INFO:NumericIntegration -- RooRealIntegral::init(genpdf_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x) [#1] INFO:Fitting -- RooAbsPdf::fitTo(genpdf_over_genpdf_Int[x]) fixing normalization set for coefficient determination to observables in data [#1] INFO:Fitting -- using generic CPU library compiled with no vectorizations [#1] INFO:Fitting -- Creation of NLL object took 644.912 μs [#1] INFO:Fitting -- RooAddition::defaultErrorLevel(nll_genpdf_over_genpdf_Int[x]_genpdfData) Summation contains a RooNLLVar, using its error level [#1] INFO:Minimization -- [fitFCN] No discrete parameters, performing continuous minimization only [#1] INFO:NumericIntegration -- RooRealIntegral::init(genpdf_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x) [#1] INFO:NumericIntegration -- RooRealIntegral::init(genpdf_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x) [#1] INFO:Fitting -- RooAbsPdf::fitTo(g2_over_g2_Int[x]) fixing normalization set for coefficient determination to observables in data [#1] INFO:Fitting -- Creation of NLL object took 94.69 μs [#1] INFO:Fitting -- RooAddition::defaultErrorLevel(nll_g2_over_g2_Int[x]_g1Data) Summation contains a RooNLLVar, using its error level [#1] INFO:Minimization -- [fitFCN] No discrete parameters, performing continuous minimization only RooFitResult: minimized FCN value: 2551.39, estimated distance to minimum: 4.39288e-06 covariance matrix quality: Full, accurate covariance matrix Status : MINIMIZE=0 HESSE=0 Floating Parameter FinalValue +/- Error -------------------- -------------------------- mean2 1.0010e+02 +/- 1.98e+00 sigma 3.1172e+00 +/- 7.12e-02