Layout of mulitpage conditioned lattice plots

Hi Dieter:

If I read your intention correctly, you need a third element in layout = .
Here's a little example:

df<- data.frame(month = rep(month.abb, each = 20),
                   time = rep(1:20, 12),
                   y = rnorm(240))
xyplot(y ~ time | month, data = df, layout = c(2, 2, 3))

This produces 3 pages of 2 x 2 plots.

Hope this is what you had in mind..

Dennis

On Sun, Dec 19, 2010 at 8:23 AM, Dieter Menne
<dieter.menne at menne-biomed.de>wrote:

Dear latticists,

I would like to spread a lattice conditioned plot over multiple pages,
keeping the same layout as if I had only one page as shown in the code
below.

My workaround is to divide the dataframe into subset that fit on one page,
but the code is ugly.

Is there a build-in way to achieve this?

Dieter



library(lattice)
nsubj = 13 # This number is variable
dt = expand.grid(time=1:20,comp=LETTERS[1:3],subj=letters[1:nsubj])
dt$val = rnorm(nrow(dt))

#pdf(file="multpageOk.pdf")
# How it should look:
xyplot(val~time|subj+comp, data=dt,type="l",layout=c(10,3),
  subset=as.integer(subj)<= 10)
#dev.off()

# What to do if it stretches over multiple pages, but I want the same
# layout as above?
pdf(file="multpage.pdf")
xyplot(val~time|subj+comp, data=dt,type="l",layout=c(10,3))
dev.off()

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