{"coeffs": [-3.7604239503002777e-06, -2.723256055047476e-07, -0.25109290329938433, 0.08032246862165629], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [7.801515556396406e-07, 1.2690329023774958e-07, 0.048142251732768315, 0.030855203559853103], "covariance": [[6.086364497669512e-13, -3.120245600904683e-14, 3.4900227328891417e-08, -2.028522258591642e-08], [-3.120245600904685e-14, 1.6104445073166505e-14, -8.278822771649584e-10, 1.9103032605341134e-09], [3.4900227328891417e-08, -8.278822771649584e-10, 0.002317676401901234, -0.0011194530463062452], [-2.0285222585916424e-08, 1.9103032605341138e-09, -0.0011194530463062452, 0.0009520435867199716]]}