{"coeffs": [-8.103049334320071e-07, 0.29640602167798474, 1.8908103141174275, 0.15303415279847193], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [6.651620800076421e-07, 152.63120999458434, 79.31642438615278, 0.013949525650557976], "covariance": [[4.4244059268009284e-13, -7.52891261629612e-05, -3.913528229304737e-05, -7.92761902595272e-09], [-7.528912616511222e-05, 23296.286264410905, 12106.160904861223, 2.051963637314642], [-3.913528229429717e-05, 12106.160904861, 6291.0951774042915, 1.0664395943916012], [-7.92761902608666e-09, 2.0519636372880306, 1.066439594377631, 0.00019458926587557495]]}