The more common way to do this is to use groups, the default is to have a
different color for each group, but you can change that using trellis.par.set:
tmp <- trellis.par.get()
tmp$superpose.symbol$pch = 0:10
trellis.par.set(tmp)
xyplot(Sepal.Width ~ Petal.Width, data=iris, groups=Species, auto
Hi:
It's not a perfect solution, but an 'easy' way out is to recognize that some
symbols are open and some are filled. If you want fill, use a filled symbol
and then change the color.
p <- rep(16:18, 4)
x<-c(1:12)
y<-c(rpois(12,4))
grp<-c(rep(c(3,4), each=6))
z<-c(rep(c(1,2), each=6))
dd <- data.
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