IWT      Kb = 5      pdf-based estimators
P δ Dsig Dsig Dref Dref
40.335481.177463.499
30.395124.293119.36718.93214.007
20.43129.55528.2325.043.717
10.4566.2765.8211.3260.871
00.01.01.00.4550.455