{"coeffs": [-1.0480212587106751e-07, 0.31448107520960317, 1.3603490050775902, 0.07397652539001197], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [4.247214430500032e-08, 568.7327039608048, 134.2034291741546, 0.003961308775969605], "covariance": [[1.8038830418647716e-15, -1.0597977495429667e-05, -2.50101955509654e-06, -9.349106224382317e-11], [-1.0597977504772849e-05, 323456.88855456834, 76325.87886311839, 2.153213104874401], [-2.5010195571967462e-06, 76325.8788631129, 18010.560402102325, 0.508105743006065], [-9.349106228590349e-11, 2.1532131043300704, 0.5081057428775533, 1.5691967218573807e-05]]}