{"coeffs": [3.39579595715594e-08, 0.02329027283312267, 1.2871002769177802, 0.07873968398540722], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.500419937137037e-08, 54.760814200122006, 185.38060009189715, 0.015921464125605415], "covariance": [[1.2252939736306457e-15, -8.416534602964061e-07, -2.849897573319293e-06, -3.106985124434481e-10], [-8.416534607977893e-07, 2998.746771860284, 10151.592329152521, 0.8324353021842837], [-2.849897575017148e-06, 10151.592329151192, 34365.9668904319, 2.818226850379114], [-3.106985125421145e-10, 0.8324353020367317, 2.818226849880444, 0.00025349301990294017]]}