{"coeffs": [-4.2085055245896894e-07, -1.2600706362253494e-08, -0.27103065170664314, 0.06892218064238233], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.165844347144595e-08, 1.6597647000215945e-08, 0.025693765940912328, 0.021771227363458854], "covariance": [[1.735425912463658e-15, -1.5968329884188438e-16, 7.726727680221108e-10, -6.416951619581813e-10], [-1.5968329884188438e-16, 2.7548188594377736e-16, 6.067777356542398e-11, 1.62326546086579e-10], [7.726727680221108e-10, 6.067777356542395e-11, 0.0006601696082263864, -0.00023418788840956622], [-6.416951619581813e-10, 1.62326546086579e-10, -0.00023418788840956622, 0.0004739863409114195]]}