Research Article

A New Efficient Redescending M-Estimator for Robust Fitting of Linear Regression Models in the Presence of Outliers

Table 3

Total mean square error for datasets generated from Laplace distribution (X & YL(0, 1)).

NPOLSHuberHampelAndrewTukeyAli

N = 30P = 20.3360.2930.3050.3000.2990.227
P = 30.4150.3490.3650.3720.3700.305
P = 60.5620.5070.5320.6850.6750.529

N = 50P = 20.2430.2140.2250.2210.2200.201
P = 30.3030.2590.2700.2610.2610.201
P = 60.5620.5050.5320.6850.6730.528

N = 100P = 20.1720.1490.1570.1500.1500.102
P = 30.2000.1720.1810.1720.1730.165
P = 60.2750.2350.2450.2350.2360.216