{"coeffs": [-1.1357374491288986e-07, 4.425566493339553e-09, -0.29990620250488365, 0.01843072332334071], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.9225428343734566e-08, 2.1609506191192857e-08, 0.05136909383373156, 0.046569321262001084], "covariance": [[1.5386342287494552e-15, -3.418716390477573e-17, 7.332956243009328e-10, -6.388348556615879e-10], [-3.418716390477573e-17, 4.669707578272025e-16, 1.889445808501484e-10, 1.8111506772187253e-10], [7.332956243009327e-10, 1.8894458085014837e-10, 0.0026387838012987175, -0.0003646239561995758], [-6.388348556615878e-10, 1.8111506772187253e-10, -0.00036462395619957585, 0.002168701682803466]]}