[R] Help : trellis.device

[Prof Brian Ripley]

On Tue, 18 May 2004, Chuck Cleland wrote:

>    If you want to save both figures in the same file and if PDF is 
> acceptable, try this:

and if it is not, ?bmp will tell you how to specify the file= in a way 
that you will get 2 .bmp files.

> 
> a <- c(1,10)
> b <- c(1,10)
> c <- c(2,20)
> d <- c(2,20)
> library(lattice) # require is design for use inside functions
> 
> pdf("test.pdf")
> trellis.device(new = FALSE, col = TRUE, bg = "white")

# trellis.device is designed for lattice plots, so not needed here.

> plot(a,b)
> plot(c,d)
> dev.off()
> 
> hope this helps,
> 
> Chuck
> 
> ??? wrote:
> > I want to save plots. So I use the R as fallows :
> > --------------------------------
> > a <- c(1,10)
> > b <- c(1,10)
> > c <- c(2,20)
> > d <- c(2,20)
> > require(lattice)
> > trellis.device("bmp", file = "test.bmp", bg = "white")
> > print(plot(a,b))
> > print(plot(c,d))
> > dev.off()
> > --------------------------------
> >  
> > However, I got a image of plot(c,d).
> > I want to get a image of plot(a,b) and plot(c,d).
> >  
> > Can anyone suggest a solution?
> 
> 

-- 
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