Hi all,
I had a weird problem with xyplot and I am wondering if anyone can help me
figure out what's wrong here. Basically if I call xyplot() inside a function
and I call quartz() after, then the previous xyplot() does not do anything. A
short demo of the issue is like this:
library(lattice)
plot.trends <- function()
{
mat <- data.frame(cbind(rnorm(100), rnorm(100)))
names(mat) <- c("x", "y")
quartz()
xyplot(y ~ x, data=mat)
quartz() # plotting works if this line is removed
}
plot.trends()
* if I run this as is, the xyplot() doesn't do anything, I only see 2 empty
quartz window
* replacing quartz() with X11() doesn't help.
* if the content of the function is copied and run directly then it works fine.
* if the second quartz() statement is removed then it also works.
Here is my system info.
* R 2.12.0
* R.app GUI 1.35 (5632) i386-apple-darwin9.8.0
* lattice_0.19-17
any suggestions? Thanks in advance!
Saiwing Yeung
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