{"coeffs": [-1.507179138136765e-07, 6.434024260064539e-07, 0.6635360259181298, 0.488403264030575], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.918543571340411e-08, 1.8094346233558544e-07, 0.16254924958784872, 0.12132512493468797], "covariance": [[2.419207086317409e-15, -8.646675451488332e-15, -7.593571882260032e-09, -5.921874025099989e-09], [-8.646675451488275e-15, 3.2740536561989424e-14, 2.9318518343920604e-08, 2.1796211861245518e-08], [-7.593571882259965e-09, 2.9318518343920547e-08, 0.02642225854157274, 0.019340035100053037], [-5.92187402509997e-09, 2.1796211861245588e-08, 0.019340035100053134, 0.014719785940417646]]}