Hello,

Thanks for your suggestion. It works in my simplified example. However, it
didn't work in my real code. It is probably because I neglected to include
the group argument in the example. I apologize for that.

Below is the real code, if you need the actual data I can include it too.

# this works well
xyplot(PaCO2~time|group, group=animal,layout=c(3,1,1),aspect=1,
    panel=function(...){
        panel.loess(...)
        panel.superpose(...)}
    ,data=pig,subset=time>5 & time<181,
    xlab='Time (minutes)',
    ylab='PaCO2 (mmHg)')


# this gives the following error "Error in using packet 1 data, X argument
missing with no #default" in each of the plot panel

xyplot(PaCO2~time|group, group=animal,layout=c(3,1,1),aspect=1,
    panel=function(x,y,subscripts,...){
        panel.loess(...)
        panel.superpose(...)
        panel.text(100,110,label=c(' ','p=0.007','p=0.006')[tail(subscripts,
1)])}
    ,data=pig, subset=time>5 & time<181,
    xlab='Time (minutes)',
    ylab='PaCO2 (mmHg)')


  Thanks tremendously for your help. I don't know why its soo hard just to
add some text!

Osman
Osman O. Al-Radi, MD, MSc, FRCSC
Staff Cardiovascular Surgeon
Co-medical director, Tissue Bank
The Hospital for Sick Children
University of Toronto, Canada


On Thu, Sep 24, 2009 at 2:18 PM, Henrique Dallazuanna <wwwhsd@gmail.com>wrote:

> Try this:
>
> xyplot(y ~ x | a,
>   panel=function(x, y, subscripts, ...){
>       panel.loess(x, y)
>       panel.text(0, 2,
> label=c('best','better','bad','worst')[tail(subscripts, 1)/100])
>   })
>
> On Thu, Sep 24, 2009 at 2:45 PM, Osman Al-Radi <osman.al.radi@gmail.com>
> wrote:
> > Dear R-help,
> >
> > I would like to add text to each of four panels in a plot generated by
> > xyplot in lattice library. A sample code is given below, the plot
> generated
> > has the first label repeated in all panels!
> >
> > How can I get the labels to be different in each panel?
> >
> > library(lattice)
> > x <- rnorm(400)
> > y <- rnorm(400)
> > a <- gl(4, 100)
> >
> > xyplot(y~x|a,
> >    panel=function(...){
> >        panel.loess(...)
> >        panel.text(0,2,label=c('best','better','bad','worst'))})
> >
> > Thanks
> >
> > Osman
> >
> >
> >
> > Osman O. Al-Radi, MD, MSc, FRCSC
> > Staff Cardiovascular Surgeon
> > Co-medical director, Tissue Bank
> > The Hospital for Sick Children
> > University of Toronto, Canada
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
> >
>
>
>
> --
> Henrique Dallazuanna
> Curitiba-Paraná-Brasil
> 25° 25' 40" S 49° 16' 22" O
>

	[[alternative HTML version deleted]]


