Figure 3

(a) Smoothing errors: WL smoothing errors${\mathit{p}}_{\mathit{t}}^{\mathit{b}}$for n _{2, t} =0 . 25 (dotted line) and n _2,t =0.8 (solid line), and the SL smoothing error (dashed line): (b) Performance of the smoother estimate. Mean of the difference between the SL and WL estimation errors DE(n₂).