A Modified M-estimator for the Detection of Outliers
A Modified M-estimator for the Detection of Outliers
A new P-function is proposed in the family of smoothly redescending M-estimators. The Shi-function associated with this new P-function attains much more linearity in its central section before it redescends, compared to other P-functions such as those of Andrews sine, Tukey's biweight and Qadir's beta function resulting in its enhanced …