{"coeffs": [-9.229146150327778e-07, -3.821278953251018e-08, -0.2620345492458177, 0.06210095396933373], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.951708751422389e-08, 1.7782286187144427e-08, 0.011279230242464163, 0.009711536081091533], "covariance": [[1.5616002056068296e-15, -1.3668063816854193e-16, 2.9456670169001026e-10, -2.525607742791883e-10], [-1.3668063816854198e-16, 3.1620970204150755e-16, 3.82440483439993e-11, 7.19402877947774e-11], [2.9456670169001026e-10, 3.8244048343999303e-11, 0.00012722103486251818, -3.720326609136698e-05], [-2.525607742791883e-10, 7.19402877947774e-11, -3.720326609136698e-05, 9.431393305434268e-05]]}