{"coeffs": [4.171873548401416e-08, 3.531903707603048e-06, 0.5336099315739522, 0.1063368946977319], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.6563777488326824e-08, 3.2791443041124456e-06, 0.16593508957890846, 0.03353512445592351], "covariance": [[3.1994609237489482e-15, -1.5560746497587585e-13, -7.966033911934066e-09, -1.7537657389216639e-09], [-1.55607464975876e-13, 1.0752787367193096e-11, 5.437067656465712e-07, 1.06891661474754e-07], [-7.966033911934083e-09, 5.437067656465712e-07, 0.027534453953560373, 0.005447110221804215], [-1.7537657389216674e-09, 1.0689166147475404e-07, 0.005447110221804217, 0.0011246045722742787]]}