Scatter Plot and Additional Variables

Francois Husson and Jerome Pages

Journal of Applied Statistics, 2005, vol. 32, issue 4, 341-350

Abstract: We often want to complete the interpretation of the usual graphs (x, y) with additional quantitative variables. The Prefmap method (vectorial model) proposes a representation of these additional variables but this representation has some drawbacks when the variables x and y are correlated. To solve this problem, we propose to substitute the coefficients of the linear regression by the coefficient of the PLS regression in the Prefmap method. The graph obtained is made operational thanks to contour lines of quality of representation and it becomes richer than the Prefmap one.

Keywords: Scatter plot; Prefmap; Pls; additional variables (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1080/02664760500079043

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