{"coeffs": [-1.6648015973969006e-08, 6.782179583920794e-07, 0.32677910853507164, 0.09425180019780521], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.1731627550662362e-08, 4.788096562808905e-08, 0.01103497896461501, 0.011983870210383954], "covariance": [[4.722636360007074e-16, -8.209863648434026e-16, -1.0643106838212699e-10, -2.394649411180209e-10], [-8.20986364843402e-16, 2.292586869478245e-15, 4.699539245020651e-10, 5.40133366992225e-10], [-1.0643106838212673e-10, 4.699539245020647e-10, 0.00012177076074949578, 9.5304041373229e-05], [-2.3946494111802073e-10, 5.401333669922252e-10, 9.530404137322912e-05, 0.00014361314521932795]]}