{"coeffs": [-5.430352550526548e-07, 0.6261097391941998, 2.159504366341599, 0.16666692372839745], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [8.796374176764928e-07, 1174.9557544968782, 314.1115172444617, 0.022284660577453923], "covariance": [[7.737619865765687e-13, -0.0008014697163423837, -0.00021428740653629903, -1.726846155300963e-08], [-0.0008014697162577544, 1380521.0250253282, 369067.12950785004, 25.30216193592071], [-0.00021428740651451662, 369067.12950785947, 98666.04526561778, 6.764557987199948], [-1.7268461552200552e-08, 25.30216193694828, 6.764557987472637, 0.000496606097052329]]}