{"coeffs": [-1.631579340362407e-07, -1.4703338689282484e-09, -0.3291716643066, 0.026261280809438806], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.257842688344968e-08, 2.0386353071738693e-08, 0.044491573607270615, 0.03837164449451432], "covariance": [[1.8129224358692705e-15, -5.2894186787154477e-17, 8.541391126978794e-10, -6.98761797151647e-10], [-5.2894186787154477e-17, 4.156033915655896e-16, 1.775531632192884e-10, 1.772438888445906e-10], [8.541391126978793e-10, 1.775531632192884e-10, 0.0019795001220511794, -0.0002461680250523312], [-6.98761797151647e-10, 1.772438888445906e-10, -0.00024616802505233125, 0.0014723831012133915]]}