n=20   0% 10% 20% 30% 40%
    θ1 θ2 θ1 θ2 θ1 θ2 θ1 θ2 θ1 θ2
Least-Squares Bias 0.0375 0.1083 68395 12511 115870 12323 115212 9858 136703 8915
MSE 0.0479 0.4842 1.50E+10 1.50E+8 1.2E+11 1.2E+9 1.4E+11 9.9E+8 2.4E+11 1.0E+9
MEP 5.0375 1.1083 68400 12512 115875 12324 115217 9859 136708 8916
Robust Method Bias 0.0901 0.1525 0.0358 0.0523 0.0362 0.0250 0.0899 0.1605 0.2034 0.3292
MSE 0.0534 0.5646 0.2296 0.5710 0.2555 0.6212 0.3534 0.8233 0.3928 1.095
MEP 5.0701 1.1327 4.9641 1.0523 4.9638 0.9751 5.0899 1.1601 5.2034 1.3292
n=50   0% 10% 20% 30% 40%
    θ1 θ2 θ1 θ2 θ1 θ2 θ1 θ2 θ1 θ2
Least-Squares Bias 0.0131 0.1430 23650 11692 18843 5605 25855 5462 33790 5170
MSE 0.0396 0.2566 4.6E+9 1.1E+9 7.6E+9 6.3E+9 1.2E+10 5.1E+08 3.1E+10 7.1E+08
MEP 5.0131 1.0414 23655 11693 18848 5606 25860 5463 33795 5171
Robust Method Bias 0.0701 0.1625 0.0365 0.0646 0.0262 0.0143 0.0504 0.0640 0.0022 0.0510
MSE 0.2167 0.5221 0.0555 0.2067 0.0660 0.3303 0.0673 0.3861 0.0710 0.6139
MEP 5.0701 1.1131 5.0365 1.0646 4.974 0.9857 5.0505 1.0650 5.0022 1.0510
Table 4: Bias, Mean Square Errors (MSE) and Mean Estimated Parameter (MEP) with Percentage Contamination in the Y Direction.