R help - Dec 2007 - Using expression in Hmisc Key()

Dear r-helpers,

How do I tell xYplot() and Key() that I want the labels in italic?

I tried this:

pdf(file = "khw.pdf", width = 8, height = 8)
with(subset(khw, length < 1.6), xYplot(lo ~ length|sub, groups = v,
aspect="xy", pch = c(1, 2, 16), col = c(2, 4, 9),
xlab=expression(frac(abs(bolditalic(v) ), abs(bolditalic(a)))),
ylab = grid::textGrob(expression(paste(log, ~~frac(italic(p) 
(italic(v)), italic(p)(italic(a))))) ),
panel=function(x,y,...){
	panel.xYplot(x, y, ...)
	panel.lmline(x, y, type = "l")
	}))
Key(x = 0.667, y = 0.833, other = list(title = expression(italic(v)),  
cex.title = 1,
	labels = c(expression(italic(b)), expression(italic(c)),  
expression(italic(d)))))
dev.off()

This works only for the title.
_____________________________
Professor Michael Kubovy
University of Virginia
Department of Psychology
USPS:     P.O.Box 400400    Charlottesville, VA 22904-4400
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         McCormick Road    Charlottesville, VA 22903
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WWW:    http://www.people.virginia.edu/~mk9y/

Michael Kubovy <kubovy <at> virginia.edu> writes:
> 
> Dear r-helpers,
> 
> How do I tell xYplot() and Key() that I want the labels in italic?
> 
....
> Key(x = 0.667, y = 0.833, other = list(title = expression(italic(v)),  
> cex.title = 1,
> 	labels = c(expression(italic(b)), expression(italic(c)),  
> expression(italic(d)))))
> dev.off()
Michael, 

I have submit a similar case last week to the Bug tracker. Maybe you can raise
that "enhancement request" to "defect"

http://biostat.mc.vanderbilt.edu/trac/Hmisc/ticket/21

Dieter

-----------
The Key function generated by some plot commands should have a ... parameter.
Otherwise, the ... in rlegend is useless, and it would be nice to be able to
suppress the box, for example.

Key = function (x = NULL, y = NULL, lev = c("No Fail",
"Fail"), pch = c(16, 1))
{ .. part omitted

    rlegend(x, y, legend = lev, pch = pch, ...) invisible()

}