{"coeffs": [-1.7946700960571353e-07, -3.02310504285068e-09, -0.240097074693003, 0.011693697758292413], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.4441054492063205e-08, 3.813010929677379e-08, 0.05273593826905829, 0.03766145413077379], "covariance": [[2.9638284142077953e-15, -2.5549942477199163e-17, 5.716670744733966e-10, -2.93050163434857e-10], [-2.5549942477199163e-17, 1.4539052349839152e-15, 4.5076624096155454e-10, 3.043337004322343e-10], [5.716670744733966e-10, 4.507662409615545e-10, 0.002781079185117927, 0.0007884757229148784], [-2.9305016343485697e-10, 3.043337004322343e-10, 0.0007884757229148784, 0.0014183851272443785]]}