{"coeffs": [-2.936584263192666e-06, 0.2204953378808716, 1.998065634285488, 0.18640151852984133], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.174770360742864e-06, 62.805674852859426, 53.45750263326506, 0.024820118673721532], "covariance": [[4.729626121965647e-12, -0.00011132173368025571, -9.479845607240297e-05, -4.910708898834837e-08], [-0.00011132173368124925, 3944.5527937230986, 3357.4333693527806, 1.5118868535116168], [-9.479845607337848e-05, 3357.4333693527265, 2857.7045877855408, 1.2871212152984606], [-4.910708898855613e-08, 1.5118868535042993, 1.2871212152922296, 0.0006160382909776203]]}