R help - Jun 2009 - SMACOF joint configuration plot with bread data?

Dear R-helpers,

I have dist class objects for 10 individuals rating the  
dissimilarities (on a 100-point scale) of the same 10 faces (analogous  
to the bread data). I would like to get an individual differences  
scaling jointly for the individual judges and the faces, and plot them  
on the same axes.

This is the example:
library(smacof)
data(breakfast)
res.rect<-smacofRect(breakfast, itmax = 1000)
plot(res.rect, joint = TRUE, xlim = c(-10, 10))

However, smacofIndDiff() doesn't produce the desired form of output.  
This is the bread example, which has data in roughly the same form as  
mine:
data(bread)
res.uc <- smacofIndDiff(bread, itmax = 1000)

Thanks,


_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
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