{"coeffs": [-3.702146013367013e-05, 3.885568178759939e-05, -0.14522863843541736, 0.41381172748252076], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.1545410175391154e-06, 2.3087090787189295e-06, 0.0503913092392735, 0.04894034188894073], "covariance": [[3.787837513657141e-11, -1.254182603181859e-11, 2.9827304741428257e-07, -2.920373789093528e-07], [-1.2541826031818784e-11, 5.330137610159207e-12, -8.432252757842817e-08, 1.086867003087965e-07], [2.9827304741428e-07, -8.432252757842571e-08, 0.0025392840468480907, -0.002158524620861878], [-2.9203737890935475e-07, 1.0868670030879561e-07, -0.002158524620861913, 0.002395157064206407]]}