{"coeffs": [-2.734772901462859e-07, -8.109249740645719e-10, -0.23621361991591658, 0.014959917036104576], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.929952493575821e-08, 6.254604895167107e-08, 0.05719968869807258, 0.04211687764211878], "covariance": [[7.974405153752102e-15, -9.792661636374798e-17, 1.5343769766810782e-09, -1.0024192516826031e-09], [-9.79266163637479e-17, 3.912008239464834e-15, 6.359962176571452e-10, 3.9139067474730396e-10], [1.5343769766810782e-09, 6.359962176571451e-10, 0.0032718043871564116, -0.00039772041451233126], [-1.0024192516826031e-09, 3.91390674747304e-10, -0.00039772041451233126, 0.0017738313823212044]]}