{"coeffs": [-8.480462521271944e-06, 0.00015325137993439333, 0.4935605025321605, 0.2177273856638382], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.0048447073733805e-06, 1.3981252188714993e-05, 0.03420002085801511, 0.01760790631263446], "covariance": [[4.019402300683055e-12, -2.3793125680636068e-11, -5.52286852634401e-08, -3.3299326306950775e-08], [-2.379312568063606e-11, 1.9547541276444777e-10, 4.760482395191271e-07, 2.3739681159541662e-07], [-5.5228685263440124e-08, 4.760482395191271e-07, 0.0011696414266886682, 0.0005698904478310544], [-3.329932630695076e-08, 2.3739681159541662e-07, 0.0005698904478310546, 0.0003100383647145125]]}