{"coeffs": [-6.590389869326948e-07, 0.7125603768380844, 1.9792725956553632, 0.1477991378207402], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [1.258612968706991e-06, 1796.3512881953677, 374.51082866863425, 0.026740579593267328], "covariance": [[1.584106604997425e-12, -0.0016433912643506585, -0.00034266423309375275, -2.8352041608831438e-08], [-0.0016433912639727307, 3226877.9506011573, 672752.9988625748, 46.244878291274354], [-0.00034266423301285316, 672752.9988626123, 140258.36079006712, 9.641807197185367], [-2.8352041605495832e-08, 46.24487829534286, 9.64180719803654, 0.000715058596983865]]}