R help - Mar 2009 - xyplot color question

Hi,
I am plotting scatterplots of horsepower by torque, conditional on brand
(I'm just making up the variables for this example), and the goal is to see
both the scatterplot points as well as the smoothed line.  When I do the
following code, I get the same color for the points and line, and would like
the colors to be different, such as black points and a red smoothed line. 
How do I do that?  I can't find any examples or figure out how to manipulate
color.  Thanks.

xyplot(horsepower ~ torque | brand, MyData,
type=c("p","smooth"))
-- 
View this message in context:
http://www.nabble.com/xyplot-color-question-tp22288842p22288842.html
Sent from the R help mailing list archive at Nabble.com.

Using data frame CO2, built into R, try this:

library(lattice)
p <- function(..., col) {
	panel.xyplot(..., type = "p", col = col[1])
	panel.xyplot(..., type = "smooth", col = col[2])
}
xyplot(conc ~ uptake | Treatment, CO2, panel = p, col = 1:2)


On Mon, Mar 2, 2009 at 9:13 AM, Paul Heinrich Dietrich
<paul.heinrich.dietrich at gmail.com> wrote:
>
> Hi,
> I am plotting scatterplots of horsepower by torque, conditional on brand
> (I'm just making up the variables for this example), and the goal is to
see
> both the scatterplot points as well as the smoothed line. ?When I do the
> following code, I get the same color for the points and line, and would
like
> the colors to be different, such as black points and a red smoothed line.
> How do I do that? ?I can't find any examples or figure out how to
manipulate
> color. ?Thanks.
>
> xyplot(horsepower ~ torque | brand, MyData,
type=c("p","smooth"))
> --
> View this message in context:
http://www.nabble.com/xyplot-color-question-tp22288842p22288842.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>