{"coeffs": [-0.0001872402446818152, 5.807851394272138e-07, -6.431968726430004, 1.109873774446726], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [0.24029263474022333, 1.2013754132060424e-06, 1459.1167964906676, 6.407363994817116], "covariance": [[0.05774055031039838, -2.867361319006038e-07, 350.61474575531, -1.5372115830324435], [-2.867361317707256e-07, 1.4433028834559889e-12, -0.001741384525387456, 7.68364031035155e-06], [350.6147457536059, -0.001741384526167523, 2129021.825801188, -9334.98080134238], [-1.5372115826959032, 7.683640312137502e-06, -9334.980799344194, 41.05431336207875]]}