[R] xyplot gets overplotted by plot

[Roger D. Peng]

Mixing base and lattice graphics, in general, does not work.  If you 
really want to do something along these lines, look at the `gridBase' 
package on CRAN.

-roger

Henric Nilsson wrote:
> Dear all,
> 
> After having set par(mfrow = c(2, 2)) and switching between plot() and 
> xyplot() using R 2.0.0 Patched (2004-10-13) under Windows 2000, the 
> lattice plot gets overplotted. I also tried this under 1.9.1 Patched 
> (2004-09-22), since this is the only older version I've got installed, 
> and it did the same thing apart from that the overplotting now starts in 
> the opposite lower corner.
> 
> I'm having a hard time believing that this is the intended behaviour, 
> but I've been proved wrong before... Try
> 
> library(lattice)
> y <- x <- 1:10
> par(mfrow = c(2, 2))
> # plots on a new page
> plot(y ~ x)
> # plots on a new page
> xyplot(y ~ x)
> # overplotting occurs
> plot(y ~ x)
> 
> for a reproducible example.
> 
> Best wishes,
> Henric
> 
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