Re: [R] lattice variable by page

From: Sundar Dorai-Raj <sundar.dorai-raj_at_pdf.com>
Date: Thu 29 Jul 2004 - 07:47:02 EST

Matt Pocernich wrote:

> Hi,
>
> Using lattice's xyplot, is it possible to specify a variable to group
> plots by page. For example, if I have
>
> xyplot(y~x|A*B*C)
>
> could I get a page created for each unique value in
> variable C ? I am hoping to avoid having pages with the same strip above
> each plot on a page.
>
> Thanks,
>
> M
>

Others may have a better solution, but when I've done this in the past I used a for loop with subset:

# assuming C is a factor to use nlevels
for(ci in nlevels(C)) {

   pl <- xyplot(y ~ x | A * B,

                subset = C == ci,
                main = paste("C ==", ci))
   print(pl)
}

HTH,
--sundar



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