{"coeffs": [-1.6720938322857405e-06, -5.841173518386398e-08, -0.1995944745484185, 0.06788087302333147], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.384455357849663e-08, 4.0325088208996354e-08, 0.012186766700586452, 0.010881553785243055], "covariance": [[4.076127021637527e-15, -5.32737126980348e-16, 4.4254701418020376e-10, -4.273482158955677e-10], [-5.327371269803479e-16, 1.6261127390633365e-15, 1.3839268359878434e-10, 2.075883752261372e-10], [4.4254701418020376e-10, 1.3839268359878431e-10, 0.00014851728261452277, -2.7309010219102324e-05], [-4.273482158955677e-10, 2.075883752261372e-10, -2.7309010219102307e-05, 0.00011840821278113745]]}