{"coeffs": [-1.2309534285721934e-07, -1.1249646910152548e-08, -0.2650801815428298, 0.021707888467067307], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.7458728497004804e-08, 1.0962011020043998e-08, 0.028503349624449035, 0.025405546730609508], "covariance": [[3.048072007321276e-16, -8.551055888562662e-18, 1.7325495755228552e-10, -1.4818387997552103e-10], [-8.551055888562663e-18, 1.2016568560356606e-16, 6.35718868625745e-11, 5.914107566429665e-11], [1.7325495755228552e-10, 6.35718868625745e-11, 0.0008124409398135788, -6.224778268151854e-05], [-1.4818387997552103e-10, 5.914107566429665e-11, -6.224778268151856e-05, 0.0006454418046811835]]}