{"coeffs": [8.194109221538583e-07, 1.2387771568600054, 1.8197125525602005, 0.1230133967494601], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [7.932169464054912e-07, 4225.393426890019, 421.4652267738137, 0.016580367685643412], "covariance": [[6.291931240648519e-13, -0.0021621759343452567, -0.00021568706654700922, -1.0134349328721903e-08], [-0.0021621759356400456, 17853949.612005383, 1780856.3880556948, 67.13979778362221], [-0.00021568706667687206, 1780856.388055556, 177632.9373795022, 6.697132255781135], [-1.0134349331739205e-08, 67.13979776946461, 6.6971322543709, 0.0002749085925911283]]}