{"coeffs": [-6.2127503141289676e-06, 0.000442904603338926, 16.098471139645426, 3.7475147803847686], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.0014152468124384629, 6.570675723937923, 61630.18606042562, 1610.2286161790562], "covariance": [[2.0029235401172295e-06, -0.009297710580123667, -87.20972100037844, -2.2787840653267812], [-0.009297708577671038, 43.173779469147156, 404951.8572669291, 10579.886289562168], [-87.20970300474754, 404951.86091917474, 3798279833.8426805, 99235509.42835803], [-2.278783819912958, 10579.887428582471, 99235519.21689288, 2592836.1963619185]]}