{"coeffs": [-1.3757736148101066e-07, 1.2925669506964983e-06, 0.8280160422011774, 0.2581258070000664], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.851539316179162e-08, 9.124143974599368e-08, 0.022799625082606717, 0.02477049277507146], "covariance": [[1.4834355104073847e-15, -3.1736227191277616e-15, -6.481132542898852e-10, -9.257391141086684e-10], [-3.1736227191277904e-15, 8.325000326921794e-15, 1.9866924835922438e-09, 2.2025582586063946e-09], [-6.481132542898961e-10, 1.986692483592255e-09, 0.0005198229039074293, 0.0004922695912206027], [-9.257391141086724e-10, 2.2025582586063855e-09, 0.0004922695912205976, 0.0006135773123198674]]}