[#1] INFO:Fitting -- RooAbsPdf::fitTo(model) 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 500.772 μs [#1] INFO:Fitting -- RooAddition::defaultErrorLevel(nll_model_modelData) Summation contains a RooNLLVar, using its error level [#1] INFO:Minimization -- [fitFCN] No discrete parameters, performing continuous minimization only RooFitResult: minimized FCN value: 1885.34, estimated distance to minimum: 0.000381082 covariance matrix quality: Full, accurate covariance matrix Status : MINIMIZE=0 HESSE=0 Floating Parameter FinalValue +/- Error -------------------- -------------------------- a0 7.2873e-01 +/- 1.13e-01 bkgfrac 4.3445e-01 +/- 8.57e-02 mean 5.0345e+00 +/- 3.36e-02 sig1frac 7.7758e-01 +/- 9.71e-02 sigma1 5.2318e-01 +/- 4.55e-02 sigma2 1.7671e+00 +/- 1.18e+00 RooFitResult: minimized FCN value: 1885.34, estimated distance to minimum: 0.000381082 covariance matrix quality: Full, accurate covariance matrix Status : MINIMIZE=0 HESSE=0 Constant Parameter Value -------------------- ------------ a1 -2.0000e-01 Floating Parameter InitialValue FinalValue +/- Error GblCorr. -------------------- ------------ -------------------------- -------- a0 5.0000e-01 7.2873e-01 +/- 1.13e-01 bkgfrac 5.0000e-01 4.3445e-01 +/- 8.57e-02 mean 5.0000e+00 5.0345e+00 +/- 3.36e-02 sig1frac 8.0000e-01 7.7758e-01 +/- 9.71e-02 sigma1 5.0000e-01 5.2318e-01 +/- 4.55e-02 sigma2 1.0000e+00 1.7671e+00 +/- 1.18e+00 EDM = 0.000381082 -log(L) at minimum = 1885.34 final value of floating parameters 1) RooRealVar:: a0 = 0.72873 +/- 0.112573 2) RooRealVar:: bkgfrac = 0.43445 +/- 0.085744 3) RooRealVar:: mean = 5.03451 +/- 0.0336279 4) RooRealVar:: sig1frac = 0.777578 +/- 0.0971233 5) RooRealVar:: sigma1 = 0.523178 +/- 0.0455077 6) RooRealVar:: sigma2 = 1.76714 +/- 1.18159 correlation between sig1frac and a0 is -0.383713 correlation between bkgfrac and mean is -0.0516125 correlation matrix 6x6 matrix is as follows | 0 | 1 | 2 | 3 | 4 | ---------------------------------------------------------------------- 0 | 1 -0.8038 -0.02304 -0.3837 0.4249 1 | -0.8038 1 -0.05161 0.6011 -0.4042 2 | -0.02304 -0.05161 1 -0.08752 -0.04055 3 | -0.3837 0.6011 -0.08752 1 0.2836 4 | 0.4249 -0.4042 -0.04055 0.2836 1 5 | 0.8347 -0.8794 0.0146 -0.2731 0.5878 | 5 | ---------------------------------------------------------------------- 0 | 0.8347 1 | -0.8794 2 | 0.0146 3 | -0.2731 4 | 0.5878 5 | 1 covariance matrix 6x6 matrix is as follows | 0 | 1 | 2 | 3 | 4 | ---------------------------------------------------------------------- 0 | 0.01295 -0.007884 -8.818e-05 -0.004281 0.002201 1 | -0.007884 0.007427 -0.0001496 0.005078 -0.001585 2 | -8.818e-05 -0.0001496 0.001131 -0.0002885 -6.206e-05 3 | -0.004281 0.005078 -0.0002885 0.00961 0.001265 4 | 0.002201 -0.001585 -6.206e-05 0.001265 0.002071 5 | 0.1142 -0.09113 0.0005905 -0.0322 0.03217 | 5 | ---------------------------------------------------------------------- 0 | 0.1142 1 | -0.09113 2 | 0.0005905 3 | -0.0322 4 | 0.03217 5 | 1.446