Displaying an Outlier in Multivariate Data

Abstract

A graphical technique for highlighting the presence of an outlier in a multivariate data set is proposed. The technique involves the projection of the multidimensional data onto a single dimension called the outlier displaying component. When the observations are plotted on this component the outlier is appreciably revealed.

Journal of Applied Science and Technology (JAST), Vol. 4, Nos. 1 & 2, 1999, pp. 39 – 43