{"coeffs": [-8.274604438189848e-07, 0.00019940289139439802, 0.6363366895605351, 0.14329843145892718], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.839492043399152e-07, 8.732100514582216e-06, 0.011455298352371447, 0.003162392998959906], "covariance": [[8.062715064527092e-14, -1.770226864244709e-12, -2.3225465442441503e-09, -7.59221986263916e-10], [-1.7702268642447124e-12, 7.624957939676701e-11, 9.984044900062612e-08, 2.6229582635897723e-08], [-2.3225465442441553e-09, 9.984044900062612e-08, 0.000131223860341844, 3.4703176645059883e-05], [-7.592219862639167e-10, 2.6229582635897716e-08, 3.470317664505988e-05, 1.000072947987063e-05]]}