[R] Vegan plotting- color help

[hadley wickham]

>  ## dummy group ID
>  group <- sample(rep(1:3, each = 4))
>  ## create dummy grouping factor
>  group <- factor(group, labels = paste("group", 1:3))
>  group
>
>  # vector of colours
>  cols <- c("red", "blue", "green")
>  ## dummay data to plot
>  datx <- runif(12)
>  daty <- runif(12)
>
>  ## plot it
>  plot(datx, daty, col = cols[group], pch = 16)

Or even more easily with ggplot2:

install.packages("ggplot2")
library(ggplot2)
qplot(datx, daty, colour = group)

which also takes care of adding the legend.

Hadley

-- 
http://had.co.nz/