Thanks, Gabor.

My matrix is from a big array(year, regions,variables). so, matrix does not
have row names or col names, how could i add the col names or row names??

Thanks again.
Dong

On 8/1/07, Gabor Grothendieck <ggrothendieck@gmail.com> wrote:
>
> Try this:
>
> mat <- matrix(1:24, 6, dimnames = list(year = 2001:2006, region =
> letters[1:4]))
>
> library(lattice)
> xyplot(Freq ~ year | region, as.data.frame.table(mat))
>
>
>
>
> On 8/1/07, Dong Guo <guo.dong99@gmail.com> wrote:
> > Dear all,
> >
> > I have a matrix, dim = (years, regions)
> >
> > I would like to plot the data in a lattice so that  each panel is
> region's
> > plot with y-axis based on values, x-axis based on year.
> >
> > how can I do that?
> >
> > Many thanks in advance.
> >
> > Dong
> >
> >        [[alternative HTML version deleted]]
> >
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> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
>

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