[R] densityplot png in a for loop

[Gabor Grothendieck]

Check out:

http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-do-lattice_002ftrellis-graphics-not-work_003f

On 2/9/07, Albert Vilella <avilella at gmail.com> wrote:
> Hi all,
>
> I am trying to plot a list of densityplots as png files, but when I do
> it in a for loop, I get empty png files as a result.
>
> If I manually run the instructions inside the loop, it works... any hints?
>
> library(lattice)
> names_list = c("alfa","beta","gamma")
> for (i in 1:length(names_list)) {
>  pngfile = paste("example_",names_list[i],".png", sep="")
>  png(file=pngfile, width=1280,height=1024)
>  input = rnorm(1000,i)
>  densityplot(~input,
>              plot.points=FALSE,
>              auto.key=TRUE
>              )
>  dev.off()
> }
>
> Thanks,
>
>    Albert.
>
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