******************************************************************************* Tue Jul 9 10:41:36 2024 FIT: data read from 'phase_space_at_22340_ns.dat' u 6:9 format = x:z #datapoints = 1051 residuals are weighted equally (unit weight) function used for fitting: f(x) f(x) = a+b*x+d*x**2 fitted parameters initialized with current variable values ******************************************************************************* Tue Jul 9 10:41:44 2024 FIT: data read from 'phase_space_at_22340_ns.dat' u 6:9 format = x:z #datapoints = 1051 residuals are weighted equally (unit weight) function used for fitting: f(x) f(x) = a+b*x+c*x**2 fitted parameters initialized with current variable values iter chisq delta/lim lambda a b c 0 1.0460864316e+03 0.00e+00 5.77e-01 1.000000e+00 1.000000e+00 1.000000e+00 5 8.2284695384e-04 -3.83e-02 5.77e-06 1.042259e-03 3.209794e-03 -1.024261e-01 After 5 iterations the fit converged. final sum of squares of residuals : 0.000822847 rel. change during last iteration : -3.825e-07 degrees of freedom (FIT_NDF) : 1048 rms of residuals (FIT_STDFIT) = sqrt(WSSR/ndf) : 0.000886092 variance of residuals (reduced chisquare) = WSSR/ndf : 7.85159e-07 Final set of parameters Asymptotic Standard Error ======================= ========================== a = 0.00104226 +/- 3.514e-05 (3.371%) b = 0.00320979 +/- 0.00207 (64.5%) c = -0.102426 +/- 0.1177 (114.9%) correlation matrix of the fit parameters: a b c a 1.000 b -0.101 1.000 c -0.622 0.301 1.000