Compact letter display for interaction effects

library(sos)
cl <- ???'compact letter display'
cl

This opened a table for me in a web browser identifying 3 help 
pages in 'multcomp' and 1 in 'multcompView' that mention 'compact letter 
display'.  Functions in multcompView will work anything that looks like 
a distance or similarity matrix.  You need to decide what to use so the 
results make sense.


       Hope this helps.
       Spencer

Hello,

I am interested in generating a compact letter display for the results
of Tukey HSD tests that contain interaction effects. The 'cld' method
in the 'multcomp' package seems only to work for main effects. Does
such a thing exist already? Thank you for any thoughts,

Josh

Spencer Graves, PE, PhD
President and Chief Technology Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San Jos?, CA 95126
ph:  408-655-4567
web:  www.structuremonitoring.com