{"coeffs": [-2.848102090013967e-07, 5.801380804028898e-06, 0.7416445639454375, 0.2238548448839887], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.937391592874767e-07, 1.0352318145387144e-05, 0.5958258761853267, 0.11159617133470003], "covariance": [[3.7534861841418265e-14, -1.926209696217635e-12, -1.1141550197230527e-07, -2.136210949286625e-08], [-1.9262096962177865e-12, 1.0717049098331191e-10, 6.1668263424552065e-06, 1.1447554799807354e-06], [-1.1141550197231312e-07, 6.166826342455166e-06, 0.35500847473201225, 0.06605034431788512], [-2.1362109492867043e-08, 1.1447554799806884e-06, 0.06605034431788284, 0.012453705456563723]]}