{"coeffs": [-3.7048293618577484e-07, -9.934011244787802e-09, -0.1438232034750226, 0.05086688315068806], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.8899575603707806e-08, 4.057033562180791e-08, 0.04323691633060099, 0.037971091316225385], "covariance": [[2.3911684942227358e-15, -2.456820712312987e-16, 9.070547261185555e-10, -8.604583801886757e-10], [-2.456820712312988e-16, 1.6459521324661356e-15, 5.925495504939679e-10, 6.197773367955584e-10], [9.070547261185555e-10, 5.925495504939678e-10, 0.0018694309337793909, -0.0001014925473638401], [-8.604583801886758e-10, 6.197773367955584e-10, -0.00010149254736384004, 0.0014418037757451267]]}