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The GIFI approach to non-linear PLS modeling
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umetrics Inc., Kinnelon, NJ, USA.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Chemistry. (Research Group for Chemometrics)
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2001 (English)In: Journal of Chemometrics, ISSN 0886-9383, E-ISSN 1099-128X, Vol. 15, no 4, 321-36 p.Article in journal (Refereed) Published
Abstract [en]

The GIFI approach to non-linear modeling involves the transformation of quantitative variables to a set of 1/0 dummies in a similar manner to the way qualitative variables are coded. This is followed by analyzing the sets of 1/0 dummies by principal component analysis, multiple regression or, as discussed here, PLS. The patterns of the resulting coefficients indicate the nature of the non-linearities in the data. Here the potential uses and limitations of PLS regression, in combination with four variants of GIFI coding, are investigated using both simulated and empirical data sets.

Place, publisher, year, edition, pages
Wiley Inter Science , 2001. Vol. 15, no 4, 321-36 p.
Keyword [en]
GIFI-PLS, non-linear PLS, PLS, non-linearity
National Category
Other Basic Medicine
Identifiers
URN: urn:nbn:se:umu:diva-9143DOI: 10.1002/cem.679OAI: oai:DiVA.org:umu-9143DiVA: diva2:148814
Available from: 2008-03-04 Created: 2008-03-04 Last updated: 2013-02-28Bibliographically approved

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Wold, Svante

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