{"coeffs": [-9.234919650848186e-06, -3.085396874473536e-07, -0.2902305748290945, 0.10353751875240423], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.8011996175922173e-06, 1.6488344934672523e-07, 0.04817736082886429, 0.023262473442386036], "covariance": [[3.2443200624143497e-12, -1.2700419554473473e-13, 8.502890551710262e-08, -3.752435265771606e-08], [-1.2700419554473468e-13, 2.7186551868474103e-14, -2.680766366135836e-09, 2.278578896178491e-09], [8.502890551710263e-08, -2.680766366135838e-09, 0.0023210580964345877, -0.0009765455272214871], [-3.752435265771606e-08, 2.278578896178492e-09, -0.0009765455272214871, 0.0005411426706577157]]}