{"coeffs": [-3.798400406047705e-07, -1.0066855037021916e-08, -0.33553168694016705, 0.04093918622919109], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.690933410027848e-08, 2.4531194286004518e-08, 0.03310602356313711, 0.028024486582187574], "covariance": [[4.476858989742689e-15, -2.0039425408051833e-16, 1.4066351982386909e-09, -1.1371704558401278e-09], [-2.003942540805183e-16, 6.017794930977007e-16, 1.3393791635197348e-10, 2.038078795133466e-10], [1.4066351982386909e-09, 1.3393791635197348e-10, 0.0010960087961629898, -0.00030641324510975217], [-1.1371704558401276e-09, 2.038078795133466e-10, -0.00030641324510975217, 0.0007853718481952113]]}