Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/102758
Title: A simple and competitive estimator of location
Authors: Chan, Y.M. 
He, X. 
Keywords: Breakdown point
efficiency
Hodges-Lehmann estimator
Huber's M-estimator
location
mean
median
robust estimator
Issue Date: 27-Jan-1994
Citation: Chan, Y.M.,He, X. (1994-01-27). A simple and competitive estimator of location. Statistics and Probability Letters 19 (2) : 137-142. ScholarBank@NUS Repository.
Abstract: We propose a location estimator based on a convex linear combination of the sample mean and median. The main attraction is the conceptual simplicity and transparency, but it remains very competitive in performance for a wide range of distributions. The estimator aims at minimizing the asymptotic variance in the class of all linear combinations of mean and median. Comparisons with some of the best location estimators, the maximum likelihood, Huber's and the Hodges-Lehmann M-estimators, are given based on asymptotic relative efficiency and Monte Carlo simulations. Computationally, the new estimator has an explicit expression and requires no iteration. Robustness is assessed by calculation of breakdown point. © 1994.
Source Title: Statistics and Probability Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/102758
ISSN: 01677152
Appears in Collections:Staff Publications

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