Try

print(xyplot(<whatever>))

instead of just xyplot()

xyplot (and all other such functions) produce a "trellis" object that
is by default printed, but that of course doesn't happen inside source
unless you explicitly print it.


--- "Waichler, Scott R" <Scott.Waichler@pnl.gov> wrote:
>
> I have a script containing an xyplot() to print to a postscript
> file, followed by dev.off().  When I source the script, the dev.off()
> seems to cut off the xyplot() execution before it is finished.
> The resulting postscript file has about the right size, but it
> appears blank when I try to view it.  If I manually execute the
> xyplot(), then wait for the return of the R prompt before executing
> dev.off(), I have no problems.  Can someone help?
>
> Scott
> Scott Waichler, Senior Research Scientist
> Hydrology Group/Environmental Technology Division
> Battelle Pacific Northwest National Laboratory
> (email) scott.waichler@pnl.gov
>
>
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