{"coeffs": [1.849905735066115e-06, 2.7287961174337097e-05, 0.39341639249640276, 0.09200512064839629], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.76575447253507e-07, 4.063928386519927e-06, 0.028536717375836407, 0.015198546204109533], "covariance": [[3.324392463755817e-13, -1.8352622093197544e-12, -1.1780099565903293e-08, -7.89859730564544e-09], [-1.8352622093197483e-12, 1.6515513930762456e-11, 1.1499980162074917e-07, 5.8863961019299164e-08], [-1.178009956590325e-08, 1.1499980162074912e-07, 0.0008143442385883635, 0.00040186056790702266], [-7.898597305645434e-09, 5.8863961019299236e-08, 0.00040186056790702336, 0.0002309958067184523]]}