Robust estimates, residuals, and outlier detection with multiresponse data.

Author(s)
Gnanadesikan, R. & Kettenring, J.R.
Year
Abstract

The paper gives an overview of concepts and techniques pertaining to (1) the robust estimation of multivariate location and dispersion; (2) the analysis of two types of multidimensional residuals - namely those that occur in the context of principal components analysis as well as the more familiar residuals associated with least squares fitting; and (3) the detection of multiresponse outliers. The emphasis is on methods for informal exploratory analysis and the coverage is both a survey of existing techniques and an attempt to propose, tentatively, some new methodology which needs further investigation and development. Some examples of use of the methods are included.

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Publication

Library number
941417 ST [electronic version only]
Source

Biometrics, Vol. 28 (1972), (March), p. 81-124, 50 ref.

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