On 3/31/08, Levi Waldron <[EMAIL PROTECTED]> wrote:
> Using the following lattice plot as an example, I would like to add
> horizontal lines where y=0:
>
> library(lattice)
> library(grid)
> fac <- gl(4,12)
> x <- letters[rep(1:3,16)]
> y <- runif(48,min=0.0)
> dotplot(y~x|fac)
>
> I've tried it with grid.lines using npc and native units, which works
> fine unless I change the size of the output device - then the lines
> are in the wrong place. Is there a way to do this that is independent
> of the output device size?
The obvious thing to try would be
dotplot(y~x|fac,
panel = function(...) {
panel.abline(h = 0)
panel.dotplot(...)
})
Does this not work?
-Deepayan
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