Dear Deepayan, Thanks for getting back to me. In the interim, I computed the layout that I wanted in the more complicated context in which the problem arose, but I'll certainly keep this clever idea in mind.
Regards, John ------------------------------ John Fox, Professor Department of Sociology McMaster University Hamilton, Ontario, Canada web: socserv.mcmaster.ca/jfox > -----Original Message----- > From: Deepayan Sarkar [mailto:[EMAIL PROTECTED] > Sent: September-25-08 6:15 PM > To: John Fox > Cc: r-help@r-project.org > Subject: Re: [R] restricting lattice pages to one > > On Thu, Sep 25, 2008 at 7:33 AM, John Fox <[EMAIL PROTECTED]> wrote: > > Dear list members, > > > > I'd like to be able to restrict the number of pages in a lattice display to > > one without having to specify explicity the number of rows and columns in > > the display -- that is, having forced one page, I'd like the number of rows > > and columns to be determined automatically. > > > > For example, the following code produces two pages of output, with the > > second replacing the first on the trellis device: > > > > A <- factor(rep(c("a1", "a2"), c(20, 20))) > > B <- factor(rep(rep(c("b1", "b2"), c(10, 10)), 2)) > > C <- factor(rep(rep(c("c1", "c2"), c(5, 5)), 4)) > > X <- rnorm(40) > > Y <- X + 0.2*rnorm(40) > > trellis.device() > > xyplot(Y ~ X | A + B + C) > > > > I can get what I want via > > > > xyplot(Y ~ X | A + B + C, layout=c(4, 2, 1)) > > > > but in the application I have in mind, I'd like to avoid having to compute > > the rows and columns. > > A general (but two-step) solution is > > p = xyplot(Y ~ X | A + B + C) > update(p, layout = c(0, prod(dim(p)))) > > Another solution that is effectively the same (with different strip > annotation) is to use an interaction as the single conditioning > variable. > > xyplot(Y ~ X | A:B:C) > > -Deepayan ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
