[R] transparent backgound in lattice plots

[Deepayan Sarkar]

On 9/9/05, Jeff D. Hamann <jeff.hamann at forestinformatics.com> wrote:
> I couldn't find this is in the FAQs or in the R archives and I've poked 
> around the lattice package manual, but...
> 
> I've been trying to figure out how to generate graphics files with a 
> transparent background with the lattice package. The code to generate the 
> levelplot is fine and I can produce a simple png file with a transparent 
> background just fine, but I'm not sure how to generate a png of a lattice 
> plot with a transparent backgound.

The short answer is 

trellis.par.set(background = list(col = "transparent"))

but see ?trellis.device for a better answer.

Deepayan