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

[Duncan Murdoch]

Michael Hopkins 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()
>   
dev.off() shouldn't care where it is being called from.  Please post 
(short!) reproducible code to show your glitch.

Duncan Murdoch
> 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
>
> ______________________________________________
>
>      Hopkins Research      Touch the Future
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