{"coeffs": [-8.970475137823281e-07, 0.0002422449186020312, 1.0508331769619834, 0.21906261580023104], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [2.1645142803556864e-06, 0.0015651331671672586, 1.82144874230922, 0.1275178511499145], "covariance": [[4.6851220698636944e-12, -2.871839029632089e-09, -3.3973149311092513e-06, -2.574785816022618e-07], [-2.87183902963189e-09, 2.4496418309670136e-06, 0.0028491370064755747, 0.00019405390681781734], [-3.397314931109045e-06, 0.002849137006475588, 3.3176755208598396, 0.227530228544408], [-2.5747858160225407e-07, 0.00019405390681782338, 0.22753022854441393, 0.016260802361891757]]}