R crashes when using "xyplot" (PR#1801)

[ligges@statistik.uni-dortmund.de]

carsten.dormann@web.de wrote:
> 
> Full_Name: Carsten Dormann
> Version: 1.4.0
> OS: Windows 2000
> Submission from: (NULL) (192.171.129.9)
> 
> Hello,
> 
> using the function xyplot I repeatedly had R crashing.
> 
> One example is from the book of Mick Crawley (Stat. Computing in Splus), where
> the commandline reads: xyplot(Weight~Age|Genotype, pch=16)
> I also had the same phenomenon with my own data and commands even simpler.
> 
> I reinstalled lattice, because on loading the package I got an error message
> that the lattice.dll couldn't be found. However that wasn't the cause of the
> problem. I downloaded the package again from a different mirror site, all in
> vain.
> This is the simplest code I could create to crash R with xyplot:
> > x_runif(100)
> > y_rnorm(100)
> > plot(x,y)
> > xyplot(y~x)
> CRASH!


Please read what a bug is and how to report a bug.
With recent versions of R (R-1.4.0 is not recent!), lattice and grid I
cannot reproduce the crash.

Uwe Ligges

BTW: 
- For good reasons, "_" will be depreciated shortly, AFAIK.
- I'd suggest to avoid random numbers for code in bug reports.

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