R help - Aug 2008 - xyplot key issue - line colors

I have a problem regarding the colors assigned to the lines in the key
to an xy plot. I specify the plot like this:

xyplot(numbers~sqrt(breaks)|moltype+disttype, groups = type, data = alldata,
      layout = c(3,2), type = "l" , lwd = 2, col = c("gray",
"skyblue"),
      key = simpleKey(levels(alldata$type), points = FALSE, lines = TRUE, 
      columns = 2, lwd = 2, col = c("gray", "skyblue")))

However, the lines in the key (the lines that indicates which line is
which) are still blue and magenta, and not gray and skyblue. I have
seen something about superposing lines on top of this somehow, but I
couldn't figure out how to do it.

Thanks!

Karin
-- 
Karin Lagesen, PhD student
karin.lagesen at medisin.uio.no
http://folk.uio.no/karinlag

On Tue, Aug 5, 2008 at 1:53 AM, Karin Lagesen <karinlag at studmed.uio.no>
wrote:
>
>
> I have a problem regarding the colors assigned to the lines in the key
> to an xy plot. I specify the plot like this:
>
> xyplot(numbers~sqrt(breaks)|moltype+disttype, groups = type, data =
alldata,
>      layout = c(3,2), type = "l" , lwd = 2, col =
c("gray", "skyblue"),
>      key = simpleKey(levels(alldata$type), points = FALSE, lines = TRUE,
>      columns = 2, lwd = 2, col = c("gray", "skyblue")))
>
> However, the lines in the key (the lines that indicates which line is
> which) are still blue and magenta, and not gray and skyblue. I have
> seen something about superposing lines on top of this somehow, but I
> couldn't figure out how to do it.
See ?simpleTheme and its example.

-Deepayan