{"coeffs": [-4.6586757583938024e-05, 9.458256653669633e-07, -0.4399555970736627, 0.13250321477203725], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1411132070701441e-05, 3.6792807792544803e-07, 0.06548550035046553, 0.020874145311605814], "covariance": [[1.3021393513499095e-10, -1.7605347507076656e-12, 7.435533383146259e-07, -2.206788735384189e-07], [-1.7605347507076765e-12, 1.3537107052591454e-13, -9.550505650271138e-09, 4.286702502074751e-09], [7.435533383146258e-07, -9.550505650271032e-09, 0.004288350756150822, -0.0012750913229458245], [-2.2067887353841888e-07, 4.28670250207471e-09, -0.0012750913229458243, 0.00043572994249003506]]}