{"coeffs": [2.5067339860938674e-07, 1.6148982387654984, 1.9906152178673342, 0.13947339962910912], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [8.347899003139276e-07, 4503.674319241761, 390.49147230412325, 0.014628811226746965], "covariance": [[6.968741776661371e-13, -0.00263849231929761, -0.00022878793722815415, -1.0028944208134902e-08], [-0.002638492320525788, 20283082.37379774, 1758646.4065625193, 63.32557999430902], [-0.00022878793733491066, 1758646.4065624143, 152483.58994224184, 5.490810403175531], [-1.0028944210536007e-08, 63.32557998366687, 5.490810402251113, 0.00021400211790779806]]}