{"coeffs": [-3.281559964497834e-07, -3.5948927766428103e-09, -0.2938142013178001, 0.023459595058398064], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.426276473367754e-08, 4.069554672574793e-08, 0.03974564191928293, 0.035092651331460285], "covariance": [[5.514958225889542e-15, -1.5582665991065072e-16, 1.1575065081260377e-09, -9.771384866447905e-10], [-1.558266599106507e-16, 1.6561275233075332e-15, 3.226882628243952e-10, 3.107132527703772e-10], [1.1575065081260375e-09, 3.2268826282439523e-10, 0.0015797160515758609, -0.00014668458626827097], [-9.771384866447903e-10, 3.1071325277037724e-10, -0.00014668458626827092, 0.0012314941774714413]]}