[R] dev.off() inside a function & other glitches

[jim holtman]

Are you explicitly 'print'ing the lattice plot?

print(xyplot(...))



On Tue, Jul 1, 2008 at 6:20 AM, Michael Hopkins
<michael.hopkins at hopkins-research.com> wrote:
>
>
> Hi R people
>
> I am using a function to create a pdf device, then send a lot of plots
> to it in a loop then a last lattice xyplot (itself within a function)
> outside the loop and finally call dev.off() to write to the file.
> This works well apart from the fact that the last plot does not get
> sent to the file unless I comment out dev.off() and then apply it in
> the console afterwards instead:
>
>        plot_stuff( ...); dev.off()
>
> The device is opened like this:
>
>        pdf( paste( var_string, ".pdf", sep="" ), onefile=TRUE, paper="a4r",
> width=9, height=6.5 )
>
> Also, if I try to send two different xyplots after the loop only the
> last one ever gets written to the file, whether or not I apply the
> dev.off() trick above.
>
> Any thoughts on why this stuff happens and best ways to avoid it are
> appreciated.
>
> Other info -> R 2.7.1 on Intel Mac 10.5.3.
>
> TIA
>
> Michael
>
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>
>     Hopkins Research      Touch the Future
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-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem you are trying to solve?