{"coeffs": [-3.420232530991009e-07, 4.258138220825231e-09, -0.33538873136270425, 0.08683312369463098], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.3175379621579154e-07, 4.671542590480614e-08, 0.15808982059311105, 0.10875557111358902], "covariance": [[5.370982206043063e-14, -3.66024138854308e-15, 3.336972412115777e-08, -2.1035318316280135e-08], [-3.660241388543082e-15, 2.182331017467432e-15, -8.66903014676017e-10, 2.6671650611467415e-09], [3.336972412115776e-08, -8.669030146760143e-10, 0.024992391375162043, -0.012308888880587333], [-2.1035318316280135e-08, 2.6671650611467407e-09, -0.01230888888058734, 0.011827774248242919]]}