Look at show.settings() and str(trellis.par.get()). This will show you what the default settings are. The group colors are set by the superpose.* elements (e.g. superpose.line is for group lines). To set them, I usually create a list and pass it to par.settings. For example,
my.theme <- list(superpose.line = list(col = c("darkred", "darkblue"), lty = 1:2)) xyplot(y ~ x, data = mydata, groups = g, par.settings = my.theme, auto.key = list(points = FALSE, lines = TRUE)) HTH, --sundar On Mon, Jun 22, 2009 at 6:30 AM, Fredrik Karlsson<dargo...@gmail.com> wrote: > Dear list, > > I have been struggling to find how I would go about changing the > bakground colors of groups in a lattice barchart in a way so that the > auto.key generated also does the right thing and pick it up for the > key. > I have used the "col" argument (which I guess is sent to par()) in a > way so that the colors are like I would want them, but now I guess I > need to know which part part of the theme I need to change in order to > make this change permanent for all the plots, and all the keys. > > I am of course thankful for all the help I can get. > > (Also, how does one know these things about the theme variables? Is > there some documentation somewhere?) > > /Fredrik > > -- > "Life is like a trumpet - if you don't put anything into it, you don't > get anything out of it." > > ______________________________________________ > R-help@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. > ______________________________________________ R-help@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.