Perhaps: x <- 1:26 xyplot(x ~ x, groups = x, pch = letters, col = rainbow(26))
On Wed, Jun 24, 2009 at 3:28 PM, Katharina May<may.kathar...@googlemail.com> wrote: > Hi, > > I've got the following problem which I cannot think of a solution right now: > > if got a lattice xyplot in black and white and a grouping variable > with many (more than 8 > values) and I plot it as regression lines (type="r"), just like this > one (not reproducable but that's > I guess not the point here): > > xyplot(log(AGWB) ~ log(BM_roots), data=sub_agwb_data, groups=species, > type="r", lty=c(1:6),panel=allo.panel.5) > > The problem is that I've got 26 different values for the grouping > variable species and only 6 default values for the line type > lty (and according to the par {graphics} help page customizable to up > to 8 different line types). > > Does anybody have any idea how these 26 different lines can be made > distinguishable from each other without the use > of colors? > > Thanks, > > Katharina > > ______________________________________________ > 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.