{"coeffs": [-5.670768537606998e-07, -2.6018840173636372e-08, -0.048595163100175615, 0.055572649214776816], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.855515928959318e-08, 8.393127822086693e-08, 0.05074861070443383, 0.044829215126779905], "covariance": [[4.699809865221495e-15, -8.2427678963317045e-16, 1.1937766845548774e-09, -1.3155999562462613e-09], [-8.242767896331702e-16, 7.04445946378857e-15, 1.9141063035287022e-09, 1.8622051749894187e-09], [1.1937766845548774e-09, 1.9141063035287022e-09, 0.002575421488430176, 0.0001684413162690609], [-1.3155999562462613e-09, 1.8622051749894187e-09, 0.0001684413162690609, 0.0020096585288831123]]}