{"coeffs": [-2.4457646966717015e-07, -3.7080914828848575e-09, -0.21898995939479207, 0.042094398267209246], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.371794157441444e-08, 3.5762772335065244e-08, 0.0581316400834399, 0.050579202967374066], "covariance": [[2.8856172469922038e-15, -1.8834222727030322e-16, 1.4130723936460282e-09, -1.2434264653583652e-09], [-1.8834222727030322e-16, 1.2789758850897082e-15, 5.720691264982595e-10, 5.961180643457343e-10], [1.4130723936460282e-09, 5.720691264982595e-10, 0.0033792875787905965, -0.000337791804269087], [-1.2434264653583652e-09, 5.961180643457343e-10, -0.00033779180426908703, 0.0025582557728148214]]}