root [3] rf102_dataimport() [#1] INFO:DataHandling -- RooDataHist::adjustBinning(dh): fit range of variable x expanded to nearest bin boundaries: [5366,5367] --> [5366.64,5366.9] number of entries = 1000 [#1] INFO:NumericIntegration -- RooRealIntegral::init(dbgauss_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x) [#1] INFO:Minization -- RooMinuit::optimizeConst: activating const optimization ********** ** 13 **MIGRAD 1000 1 ********** FIRST CALL TO USER FUNCTION AT NEW START POINT, WITH IFLAG=4. START MIGRAD MINIMIZATION. STRATEGY 1. CONVERGENCE WHEN EDM .LT. 1.00e-03 [#0] WARNING:Minization -- RooFitGlue: Minimized function has error status. Returning maximum FCN so far (1744.22) to force MIGRAD to back out of this region. Error log follows Parameter values: mean=5366.77, sigma1=-0.000324547 RooNLLVar::nll_dbgauss_dh[ paramSet=(A,mean,sigma1) ] function value is NAN @ paramSet=(A = 120,mean = 5366.77,sigma1 = -0.000324547) RooGenericPdf::dbgauss[ actualVars=(A,x,sigma1,mean) formula="A*exp(-(x-mean)*(x-mean)/(2*sigma1*sigma1))" ] getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.69,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.71,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.73,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.73,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.74,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.74,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.74,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.75,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.75,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.75,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.75,sigma1 = -0.000324547,mean = 5366.77) getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.76,sigma1 = -0.000324547,mean = 5366.77) ... (remaining 18 messages suppressed) [#0] WARNING:Minization -- RooFitGlue: Minimized function has error status. Returning maximum FCN so far (1744.22) to force MIGRAD to back out of this region. Error log follows Parameter values: mean=5366.77, sigma1=0.00222655 RooGenericPdf::dbgauss[ actualVars=(A,x,sigma1,mean) formula="A*exp(-(x-mean)*(x-mean)/(2*sigma1*sigma1))" ] getLogVal() top-level p.d.f evaluates to zero @ actualVars=(A = 120,x = 5366.86,sigma1 = 0.00222655,mean = 5366.77) FCN=-3262.27 FROM MIGRAD STATUS=INITIATE 29 CALLS 30 TOTAL EDM= unknown STRATEGY= 1 NO ERROR MATRIX EXT PARAMETER CURRENT GUESS STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 mean 5.36677e+03 2.60000e-02 0.00000e+00 -2.23952e+02 2 sigma1 8.90145e-03 1.00000e+00 6.39145e-03 -8.31827e+03 ERR DEF= 0.5 MIGRAD MINIMIZATION HAS CONVERGED. MIGRAD WILL VERIFY CONVERGENCE AND ERROR MATRIX. COVARIANCE MATRIX CALCULATED SUCCESSFULLY FCN=-3263.68 FROM MIGRAD STATUS=CONVERGED 52 CALLS 53 TOTAL EDM=2.1369e-07 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER STEP FIRST NO. NAME VALUE ERROR SIZE DERIVATIVE 1 mean 5.36677e+03 2.91849e-04 8.83195e-05 1.16094e-01 2 sigma1 9.22446e-03 2.06366e-04 8.08417e-06 -1.85118e+00 ERR DEF= 0.5 EXTERNAL ERROR MATRIX. NDIM= 25 NPAR= 2 ERR DEF=0.5 8.518e-08 5.364e-11 5.364e-11 4.259e-08 PARAMETER CORRELATION COEFFICIENTS NO. GLOBAL 1 2 1 0.00089 1.000 0.001 2 0.00089 0.001 1.000 ********** ** 18 **HESSE 1000 ********** COVARIANCE MATRIX CALCULATED SUCCESSFULLY FCN=-3263.68 FROM HESSE STATUS=OK 10 CALLS 63 TOTAL EDM=2.13798e-07 STRATEGY= 1 ERROR MATRIX ACCURATE EXT PARAMETER INTERNAL INTERNAL NO. NAME VALUE ERROR STEP SIZE VALUE 1 mean 5.36677e+03 2.91849e-04 1.76639e-05 1.05164e-03 2 sigma1 9.22446e-03 2.06366e-04 3.23367e-07 9.22446e-03 ERR DEF= 0.5 EXTERNAL ERROR MATRIX. NDIM= 25 NPAR= 2 ERR DEF=0.5 8.518e-08 1.131e-11 1.131e-11 4.259e-08 PARAMETER CORRELATION COEFFICIENTS NO. GLOBAL 1 2 1 0.00019 1.000 0.000 2 0.00019 0.000 1.000 [#1] INFO:Minization -- RooMinuit::optimizeConst: deactivating const optimization [#1] INFO:NumericIntegration -- RooRealIntegral::init(dbgauss_Int[x]) using numeric integrator RooIntegrator1D to calculate Int(x)