On 4/22/09, Sebastien Bihorel <sebastien.biho...@cognigencorp.com> wrote:
> Thanks to all the people who answer my question. It is know clear to know
> how to produce a square shape graph... but I guess there is no easy way to
> force the x and the y axis to have the same limits.
If you mean the general case where you don't want to specify xlim and
ylim explicitly, then in lattice you can use
xyplot(...
prepanel = function(x, y, ...) {
rng <- range(x, y, finite = TRUE)
list(xlim = rng, ylim = rng)
})
-Deepayan
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