[R] Lattice: Saving multiple plots

[ripley@stats.ox.ac.uk]

You can generate plots on multiple jpeg files. See ?jpeg for the format of 
the `file' argument; this happens by default.

However, this is not `saving multiple plots' and that is more difficult.
Remember a lattice plot object is plotted by printing, so you can save the 
object and then open a new device and print it again.

On Sun, 30 Mar 2003, Peter Ho wrote:

> Is there a way to automatically save trellis plots , when "layout" is 
> used to produce graphs on more than one page (graph window). In the 
> example below, I have 4 graphs on each  of 4 pages. I want to save each 
>  page separately.
> 
> ######
> splom(~final.princomp.pc.scores.five[1:3]|Syrup.time*Massequite.temp, 
> groups=Batch.number,data= final.princomp.pc.scores.five,
> panel = panel.superpose,
> key = list(title = "Batches",
>                   points = list(pch = super.sym$pch[1:14],
>                  col = super.sym$col[1:14]),
>                  text = 
> list(c("1","2","3","4","5","6","7","8","9","10","11","12","13","14")),
>             columns=7),aspect=1,layout = c(2,2,4))
> #####
> 
> With only one page of graphs I would normally use the following script 
> in the beginning.For example:
> 
> #####
> jpeg(file="graph1.jpeg", width=960, height=960, quality=100)
> #####
> 
> Is there a similar way to save these graphs?

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595