{"coeffs": [-2.0710972060541088e-08, 5.691188642757427e-06, 0.4693530198716759, 0.06950235047993507], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3584762140110823e-08, 6.075849074709819e-07, 0.013572015217912537, 0.0033860085651908787], "covariance": [[1.8454576240338839e-16, -5.621153797587642e-15, -1.2555070436344381e-10, -3.668777532301022e-11], [-5.621153797587664e-15, 3.691594197865216e-13, 8.23439638759971e-09, 1.9731551171926388e-09], [-1.2555070436344384e-10, 8.23439638759971e-09, 0.00018419959707524947, 4.439073914832146e-05], [-3.6687775323010274e-11, 1.9731551171926384e-09, 4.4390739148321454e-05, 1.1465054003545992e-05]]}