Table 3 Comparison among the existing and proposed M-estimators on the data of telephone calls.
From: Enhancing performance in the presence of outliers with redescending M-estimators
Method | Coefficients | |||
|---|---|---|---|---|
a | b | n | SSEs | |
LMS | − 5.1640 | 0.1080 | 16 | 0.13130 |
Tukey (3.8) | − 5.2439 | 0.1102 | 16 | 0.13665 |
Andrews (1.5) | − 4.9072 | 0.1033 | 16 | 0.17308 |
Ali (3.0) | − 5.2092 | 0.1094 | 16 | 0.13404 |
Qadir (1.0) | − 5.2092 | 0.1122 | 16 | 0.13404 |
Ullah (4) | − 5.2430 | 0.1102 | 16 | 0.14060 |
Khalil (4.0) | − 5.2343 | 0.1099 | 16 | 0.13863 |
Alamgir (3.0) | − 5.2343 | 0.1102 | 16 | 0.14127 |
Raza(6, 3.5) | − 5.5109 | 0.1094 | 16 | 0.13256 |
Proposed(2) | − 5.16568 | 0.1085 | 16 | 0.13120 |
