{"coeffs": [-2.34533956650187e-06, 5.06526993644392e-05, 0.37014420467040354, 0.16059554821252175], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.4873638346552655e-07, 1.1189957475284922e-06, 0.0064116038420037125, 0.0053207191992449806], "covariance": [[1.2161706515261478e-13, -2.904929142208074e-13, -1.159187603960654e-09, -1.6557866904469686e-09], [-2.904929142208083e-13, 1.2521514829868488e-12, 6.791065686241314e-09, 5.551349136340728e-09], [-1.1591876039606597e-09, 6.7910656862413184e-09, 4.110866382679677e-05, 2.750530512957628e-05], [-1.6557866904469704e-09, 5.551349136340721e-09, 2.7505305129576223e-05, 2.8310052797214143e-05]]}