{"coeffs": [-2.53616244371469e-06, 0.23394945549156732, 1.9988463519692847, 0.18488760678450106], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [1.386285854596493e-06, 45.53358271743453, 36.42565184276355, 0.015901334454861263], "covariance": [[1.921788470654329e-12, -5.1273217275598665e-05, -4.103636999837564e-05, -2.0012553600834667e-08], [-5.1273217278237e-05, 2073.3071550854525, 1658.589911791421, 0.7020388987666916], [-4.103637000052159e-05, 1658.5899117913068, 1326.8281121702234, 0.5617242362586224], [-2.0012553601340415e-08, 0.7020388987512913, 0.5617242362463313, 0.00025285243744535796]]}