A note on the dual scaling of dominance data and its relationship to correspondence analysis

Michael Greenacre and Anna Torres ()
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Anna Torres: https://www.upf.edu/web/econ/faculty/-/asset_publisher/6aWmmXf28uXT/persona/id/3418621
Authors registered in the RePEc Author Service: Anna Torres Lacomba ()

Economics Working Papers from Department of Economics and Business, Universitat Pompeu Fabra

Abstract: Dual scaling of a subjects-by-objects table of dominance data (preferences, paired comparisons and successive categories data) has been contrasted with correspondence analysis, as if the two techniques were somehow different. In this note we show that dual scaling of dominance data is equivalent to the correspondence analysis of a table which is doubled with respect to subjects. We also show that the results of both methods can be recovered from a principal components analysis of the undoubled dominance table which is centred with respect to subject means.

Keywords: Correspondence analysis; dominance data; dual scaling; paired comparisons; preferences; principal component analysis; ratings (search for similar items in EconPapers)
JEL-codes: C19 C88 (search for similar items in EconPapers)
Date: 1999-12
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Citations: View citations in EconPapers (1)

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