Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 561274
Title Generalised Procrustes Analysis with optimal scaling: Exploring data from a power supplier
Author(s) Wieringa, Jaap; Dijksterhuis, Garmt; Gower, John; Perlo, Frederieke van
Source Computational Statistics & Data Analysis 53 (2009)12. - ISSN 0167-9473 - p. 4546 - 4554.
DOI https://doi.org/10.1016/j.csda.2009.03.017
Publication type Refereed Article in a scientific journal
Publication year 2009
Abstract

Generalised Procrustes Analysis (GPA) is a method for matching several, possibly large, data sets by fitting them to each other using transformations, typically rotations. The linear version of GPA has been applied in a wide range of contexts. A non-linear extension of GPA is developed which uses Optimal Scaling (OS). The approach is suited to match data sets that contain nominal variables. A database of a Dutch power supplier that contains many categorical variables unfit for the usual linear GPA methodology is used to illustrate the approach.

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