{"coeffs": [-2.7680155804546976e-07, 0.7710141381616574, 1.9970069841397664, 0.1505101681066438], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [1.4467397142461263e-06, 1835.5752980684795, 360.163075249235, 0.02711203397257648], "covariance": [[2.093055800776963e-12, -0.0019510877037740907, -0.0003828775311700646, -3.3292398226751864e-08], [-0.0019510877022877956, 3369336.6748791873, 661106.4328629277, 47.93893612480611], [-0.00038287753087654607, 661106.4328630599, 129717.44077298613, 9.406710186564911], [-3.3292398213743986e-08, 47.93893613923795, 9.40671018939524, 0.0007350623861301412]]}