R help - Mar 2010 - Adding text outside (lattice barchart) plotting region.

Hi All,

I need some help with adding text at the bottom of the graph (outside of
default outline of graph).

Say, I need to write "Month:   01     04" below each of the two years
in the
following R code, something like this:

          _______________
          |                         |
          |         Plot          |
          |___  __________|
           1931          1932
Month:   01              04

# R code
require(lattice)
barchart(yield ~ year, data = barley,
  stack=TRUE,
  col="black",
  ylim=c(0,85)
)
Can anyone help please, thanks in advance,
Peng Cai

	[[alternative HTML version deleted]]

barchart(yield ~ year, data = barley,
  stack=TRUE,
  col="black",
  ylim=c(0,85),
 scales=list(x=list(labels=c(expression(atop(March, 1932)),
expression(atop(April, 1932)))))
 )

This gets most of what you want.

	[[alternative HTML version deleted]]

On 03/18/2010 09:50 AM, Peng Cai wrote:
> Hi All,
>
> I need some help with adding text at the bottom of the graph (outside of
> default outline of graph).
>
> Say, I need to write "Month:   01     04" below each of the two
years in the
> following R code, something like this:
>
>            _______________
>            |                         |
>            |         Plot          |
>            |___  __________|
>             1931          1932
> Month:   01              04
>
> # R code
> require(lattice)
> barchart(yield ~ year, data = barley,
>    stack=TRUE,
>    col="black",
>    ylim=c(0,85)
> )
Hi Peng,
Try using mtext:

mtext("Month:  01   04",side=1,line=2,at=0,adj=0)

You may have to adjust the last three arguments to get it in the correct 
position.

Jim