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A Graphical Aid to Selection of Variables in Two‐Group Discriminant Analysis
Author(s) -
McKay R. J.
Publication year - 1978
Publication title -
journal of the royal statistical society: series c (applied statistics)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.205
H-Index - 72
eISSN - 1467-9876
pISSN - 0035-9254
DOI - 10.2307/2347161
Subject(s) - linear discriminant analysis , selection (genetic algorithm) , statistics , group (periodic table) , group selection , mathematics , artificial intelligence , computer science , chemistry , organic chemistry
Summary Alternatives to Mallows' (1964) well‐known graphical aid to variable selection in multiple regression have been suggested by Spj⊘tvoll (1977). The purpose of this note is to show that one of the plots proposed by Spj⊘tvoll has a straightforward and meaningful analogue in the corresponding two‐group discriminant analysis. This provides a graphical aid to a simultaneous procedure for variable selection in discriminant analysis proposed by McKay (1976) and also to a less conservative alternative to that procedure suggested by arguments paralleling those of Spj⊘tvoll in the regression context.