{"coeffs": [-0.002218421273081718, 1.4893152305192501e-08, -1.9619258238672788, 0.16040972124128827], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.786344157817399, 1.7331669044511842e-08, 129.28985394441537, 0.04484193253017894], "covariance": [[3.1910254501683526, 9.308873044463123e-10, 230.95512296397723, -0.020470695138090463], [9.308873037710384e-10, 3.0038675186849e-16, 6.275622257849465e-08, 5.228368603864461e-10], [230.95512296399897, 6.27562226286392e-08, 16715.86633296826, -1.4984967030084684], [-0.020470695140507995, 5.228368603817557e-10, -1.4984967031833025, 0.0020107989130411204]]}