{"coeffs": [-6.969501661830989e-08, 0.18736744694633414, 1.317923011254152, 0.0661746365354379], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [1.5129466511958117e-08, 642.3330894890508, 227.28544460344517, 0.003918229034695691], "covariance": [[2.2890075693646217e-16, -3.947313756447978e-06, -1.396809200904527e-06, -3.0629639192239644e-11], [-3.947313764341694e-06, 412591.79785254906, 145992.96162360342, 2.408874651581815], [-1.396809203679663e-06, 145992.9616235892, 51658.67332858574, 0.8523784874514251], [-3.0629639225873564e-11, 2.408874650236758, 0.8523784869765065, 1.5352518768332326e-05]]}