[R] An extension of Gabriel's biplot

From: Ravi Varadhan <rvaradhan_at_jhmi.edu>
Date: Fri, 01 Jun 2007 16:43:55 -0400

Hi All,  

I would like to extend the standard biplot of Grabriel (1971), which is done by the R function biplot(). Rather than just showing the variables as vectors (with arrows at end point), I would like to show them as line segments, where the segment runs from minimum value of the variable to its maximum. In other words, I would like to produce a plot similar to that shown in Figure 1 of Gabriel and Odoroff (1990), rather than the classical biplot shown in Figure 2 of the same paper. Has anyone generated biplots similar to Figure 1 of Gabriel and Odoroff?  

Any help is greatly appreciated.  



Ravi Varadhan, Ph.D.

Assistant Professor, The Center on Aging and Health

Division of Geriatric Medicine and Gerontology

Johns Hopkins University

Ph: (410) 502-2619

Fax: (410) 614-9625

Email: rvaradhan_at_jhmi.edu

Webpage: http://www.jhsph.edu/agingandhealth/People/Faculty/Varadhan.html  


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