{"coeffs": [8.225227543374743e-09, 0.0015677390791665453, 1.7175560304122346, 0.06010631747869312], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.198959699407687e-09, 1727.4764549782044, 65977.20759367915, 0.39701559147863047], "covariance": [[1.7631262557249895e-17, -3.034988103779635e-06, -0.00011591666706011112, -8.467460201181143e-10], [-3.0349881035881004e-06, 2984174.9025040646, 113974072.66773142, 666.1039829839535], [-0.00011591666708521261, 113974072.66773142, 4352991921.859434, 25440.49649250765], [-8.467460202843816e-10, 666.1039829839536, 25440.496492507653, 0.1576213798771268]]}