[R] Adding text outside (lattice barchart) plotting region.

Jim Lemon jim at bitwrit.com.au
Thu Mar 18 00:27:34 CET 2010


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



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