{"coeffs": [6.252370733359009e-08, 0.12403874909923192, 1.3817047417658361, 0.07790139337797716], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.6740381899654504e-08, 381.45583881159723, 240.65296151956872, 0.00893576043321503], "covariance": [[2.1846633001255504e-15, -8.12544685241646e-06, -5.126738396544443e-06, -2.402582353991664e-10], [-8.125446854708983e-06, 145508.55696345924, 91798.47676377156, 3.256512362892708], [-5.126738397809441e-06, 91798.47676376873, 57913.84788813902, 2.054537889542081], [-2.402582354357223e-10, 3.2565123626073693, 2.0545378893632797, 7.984781451981127e-05]]}