{"coeffs": [-4.4636388616114023e-07, 3.538506489326381e-05, 0.5358127278152459, 0.15109538395565394], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [8.246335659162748e-07, 8.112608420684244e-06, 0.0671817698997107, 0.030360152581153526], "covariance": [[6.800205180357912e-13, -4.943663252387746e-12, -3.8292429112920746e-08, -2.188407650711892e-08], [-4.943663252387744e-12, 6.58144153873569e-11, 5.419313070871174e-07, 2.3268329743067537e-07], [-3.8292429112920726e-08, 5.419313070871174e-07, 0.004513390206857674, 0.0018983436602368427], [-2.18840765071189e-08, 2.326832974306754e-07, 0.0018983436602368433, 0.0009217388647509232]]}