On Sat, Apr 19, 2008 at 1:06 PM, Tobias Verbeke
<[EMAIL PROTECTED]> wrote:
> Anna-Maria Tyrisevä wrote:
>
> > please, could somebody tell me how can I superpose a group of x,y-plot
> > points (using different symbols) that belong to a certain class of factor
> z?
> > Can't find a solution despite of hours of reading.
>
> x <- rnorm(30)
> y <- rnorm(30)
> f <- factor(sample(LETTERS[1:5], 30, replace = TRUE))
Or with legends as well:
install.packages("ggplot2")
library(ggplot2)
qplot(x, y, colour = f)
qplot(x, y, shape = f)
Hadley
--
http://had.co.nz/
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