{"coeffs": [-4.139447696837855e-07, -1.4439514555311241e-08, -0.15997783741511434, 0.03372004090431297], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.419526491018869e-08, 4.534952321348522e-08, 0.036413280691792324, 0.03164366294944639], "covariance": [[2.9371267386855296e-15, -1.6570413432946984e-16, 7.017003374933465e-10, -6.088298501428237e-10], [-1.6570413432946984e-16, 2.056579255690435e-15, 4.788586187058511e-10, 4.3614363719859216e-10], [7.017003374933465e-10, 4.78858618705851e-10, 0.0013259270107392558, -4.349781376081692e-05], [-6.088298501428237e-10, 4.3614363719859216e-10, -4.349781376081692e-05, 0.0010013214048581662]]}