{"coeffs": [-3.4177626417924655e-07, -7.255659944307768e-09, -0.2931178442691532, 0.0010710699227143652], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.743118006845259e-08, 4.7416711843710915e-08, 218195.83233572604, 834163.7617108042], "covariance": [[5.99558764679313e-15, 4.680308943649338e-32, -2.8248833037276285e-11, 2.9469512113286226e-10], [6.240411924865784e-32, 2.2483445620695148e-15, -3.402484074385371e-11, 2.2102134084964668e-10], [-3.683689014160778e-11, -5.525533521241167e-11, 47609421248.68027, -182011056290.78915], [2.9469512113286226e-10, 2.2102134084964668e-10, -182011056290.78915, 695829181351.5194]]}