On 26 February 2010 11:12, Lorenzo Isella <[email protected]> wrote:
> Thanks Augustine and Jim for the prompt reply.
> You both answered my question. To avoid another post, I would simply like to
> know if something along these lines is doable also with ggplot2.
> Many thanks
>
> Lorenzo
>
Augustine???
Anyhow, with ggplot2,
m <- matrix(rnorm(200) > 0, ncol=20)
require(ggplot2)
d <- melt(m)
qplot(X1, X2, data=d, fill=value, geom="tile") +
scale_fill_manual(values=c("white", "black"))
HTH,
baptiste
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