期刊
JOURNAL OF CHEMOMETRICS
卷 15, 期 4, 页码 413-426出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/cem.676
关键词
regression; classification; discriminant analysis; collinearity; PCR; PCA
This paper presents a discussion of the collinearity problem in regression and discriminant analysis. The paper describes reasons why the collinearity is a problem for the prediction ability and classification ability of the classical methods. The discussion is based on established formulae for prediction errors. Special emphasis is put on differences and similarities between regression and classification. Some typical ways of handling the collinearity problems based on PCA will be described. The theoretical discussion will be accompanied by empirical illustrations. Copyright (C) 2001 John Wiley & Sons, Ltd.
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