{"coeffs": [-1.8008887022862267e-06, -8.088986659458491e-08, -0.22963931583830577, 0.06627238502254314], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.9012580811841275e-08, 3.0862814262790844e-08, 0.00956440571076626, 0.008393771933536655], "covariance": [[3.482484694074097e-15, -3.7608170382523276e-16, 3.534967622571012e-10, -3.197070905301293e-10], [-3.7608170382523276e-16, 9.525133042195258e-16, 6.715162911001826e-11, 1.1627777969229566e-10], [3.534967622571012e-10, 6.715162911001826e-11, 9.147785660013825e-05, -2.3041259620987067e-05], [-3.197070905301293e-10, 1.1627777969229566e-10, -2.3041259620987067e-05, 7.045540727222768e-05]]}