{"coeffs": [-1.5459509716964497e-08, 9.571666849796173e-05, 1.4917643851708429, 0.15940902863672088], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.9514724159531468e-07, 6.669802275699648, 11409.376968503488, 5.5487057880447885], "covariance": [[3.8082445902260117e-14, -8.42180377254532e-07, -0.0014418129050635961, -8.38260871023244e-07], [-8.421803772248594e-07, 44.4862623969282, 76098.2483008217, 35.426749917195735], [-0.0014418129050126427, 76098.2483008251, 130173882.80941783, 60619.81772653059], [-8.382608710092779e-07, 35.42674991766294, 60619.81772732707, 30.78813592228174]]}