{"coeffs": [6.370540140802774e-07, 0.7858961526185926, 1.5759640183612, 0.09713724674021217], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [3.571733305673224e-07, 2811.8655416602073, 349.1435638003142, 0.012242378918866667], "covariance": [[1.2757278806855376e-13, -0.0005419132357770097, -6.729460213919489e-05, -2.91558277383081e-09], [-0.0005419132356711355, 7906587.82437605, 981744.7509522565, 32.88404544929971], [-6.729460212858161e-05, 981744.7509522774, 121901.2281431841, 4.083274150747545], [-2.915582773611312e-09, 32.88404545141825, 4.083274151009055, 0.00014987584159311098]]}