{"coeffs": [-9.48596887555524e-05, 1.981393134061169e-08, -0.39595345071149457, 0.10342025220659576], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.7849355716708372, 1.402110822745351e-08, 858.9612247904502, 0.3313419536303509], "covariance": [[0.6161238516742239, -5.903758878842264e-09, 674.2289212268013, -0.2458729847160865], [-5.903758879038097e-09, 1.9659147592596452e-16, -6.466386840475484e-06, 3.171052304369201e-09], [674.2289212268232, -6.466386840191206e-06, 737814.3856935103, -269.1478450952533], [-0.24587298471900984, 3.1710523043042463e-09, -269.14784509844355, 0.10978749023557761]]}