{"coeffs": [-6.737741395664322e-07, 0.2188628637400816, 1.9172372069055679, 0.1558166327383323], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [4.737138941463106e-07, 110.90793581737631, 79.47062772891603, 0.013753511840982655], "covariance": [[2.2440485350726196e-13, -3.934636306228291e-05, -2.8200781807775393e-05, -5.605167906850305e-09], [-3.9346363054755705e-05, 12300.570227271264, 8813.92263593339, 1.4708406483662335], [-2.820078180241129e-05, 8813.922635934308, 6315.580671627958, 1.054035331198649], [-5.605167906309496e-09, 1.4708406484768026, 1.0540353312778121, 0.0001891590879600501]]}