{"coeffs": [-7.770591629255879e-06, 0.03056653910414403, 3.455858945785952, 0.4293083317504064], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.347052717493137e-06, 8.89115314525658, 126.17777549403111, 0.18466807214171121], "covariance": [[1.889686732866447e-11, -3.718446633764034e-05, -0.000527871482871289, -7.936603119501372e-07], [-3.718446633764136e-05, 79.05260425240596, 1121.8651249504242, 1.6276420094964659], [-0.0005278714828714235, 1121.8651249504242, 15920.831028622117, 23.102137534405475], [-7.936603119503091e-07, 1.6276420094964659, 23.10213753440548, 0.034102296868536254]]}