{"coeffs": [-8.428094354967318e-07, -3.9791804088074705e-08, -0.17355595122990916, 0.06976250525304777], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [9.314668770974907e-08, 6.383970928240172e-08, 0.037529941839107635, 0.03377410317908303], "covariance": [[8.676305431297518e-15, -1.2709441637310462e-15, 1.9122244391330785e-09, -1.914670509709217e-09], [-1.270944163731046e-15, 4.075508481261569e-15, 7.325031846999863e-10, 1.061277065757842e-09], [1.9122244391330785e-09, 7.325031846999863e-10, 0.0014084965344468019, -0.00021895946006324639], [-1.914670509709217e-09, 1.0612770657578421e-09, -0.00021895946006324639, 0.0011406900455513465]]}