{"coeffs": [-7.2326953154875414e-06, -4.048765052639951e-07, -0.29442546208900733, 0.09465560542601031], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.2501254420357965e-06, 2.0432886672752234e-07, 0.07338661250290675, 0.035949970438510795], "covariance": [[5.063064504896789e-12, -1.7912913528162726e-13, 1.6135428366861422e-07, -7.19645136278701e-08], [-1.7912913528162726e-13, 4.175028577815358e-14, -4.4443748926316285e-09, 4.0558919887931225e-09], [1.6135428366861424e-07, -4.444374892631628e-09, 0.005385594894651789, -0.0022788996556392773], [-7.19645136278701e-08, 4.055891988793122e-09, -0.0022788996556392773, 0.0012924003745298]]}