{"coeffs": [5.438498947659866e-08, 1.6420408488482892e-06, 0.5050884614580607, 0.17413447411059294], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.186236027280475e-08, 3.4347443093178216e-07, 0.06901879394161571, 0.04856167631242382], "covariance": [[6.701446029434481e-15, -2.2515874035107917e-14, -3.814410026594183e-09, -3.6596599188142682e-09], [-2.2515874035107945e-14, 1.1797468470391158e-13, 2.3190638955532388e-08, 1.5854076232010813e-08], [-3.814410026594192e-09, 2.3190638955532398e-08, 0.00476359391715521, 0.002973240482114941], [-3.6596599188142703e-09, 1.5854076232010803e-08, 0.0029732404821149385, 0.0023582364062726246]]}