{"coeffs": [-2.0081615631379116e-07, -2.4662868368283027e-09, -0.3052525824607162, 0.014923731672071233], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.247788033120023e-08, 1.7855751204893413e-08, 0.02407298024062646, 0.019202509413762645], "covariance": [[1.0548127108077628e-15, -1.3683830928231225e-17, 2.827407424270548e-10, -2.0812197008752978e-10], [-1.3683830928231225e-17, 3.1882785109105255e-16, 6.406241500999061e-11, 4.5917913250318933e-11], [2.827407424270548e-10, 6.406241500999062e-11, 0.000579508377665592, -0.00012156006591681741], [-2.0812197008752973e-10, 4.591791325031894e-11, -0.00012156006591681741, 0.00036873636778564297]]}