{"coeffs": [-2.6210814378183994e-07, -2.5059737011196247e-09, -0.2920726079959732, 0.0010955316991062294], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.075462630907875e-08, 1.8833309247421497e-08, 114785.21050338726, 165659.33123209493], "covariance": [[9.458470394110788e-16, 1.9689396945227203e-32, -2.191700279085658e-11, -4.649027410102846e-11], [1.9689396945227203e-32, 3.546935372090121e-16, -8.135590724955378e-12, -1.4528210656571394e-11], [-2.324513705051423e-11, -8.716926393942837e-12, 13175644550.306927, 19015241207.326374], [-4.649027410102846e-11, -1.1622568525257116e-11, 19015241207.326374, 27443014024.264942]]}