[S] xyplot

[Winson Taam <taam@Oakland.edu>]

I have used nlme fitted on a set of data and would like to
use xyplot to plot the original data and the fitted result.
But I cannot find enough documentation to learn xyplot.
Can some one give me some idea where to look for find that?
I have tried on-line help and MASS3.

mydata.nlme <- nlme( ..... )

I was able to fit a model and found the fitted values

myhat <- fitted(mydata.nlme)

xyplot( resp ~ expl | facA*facB ,
        data= mydata,
        xlab='Explanatory',
        ylab='Response',
        panel= function(x,y){
          panel.xyplot(x,y)
          yhat <- fitted(mydata.nlme)
          panel.xyplot(x,yhat$population,type='l')
          }
        )
This gives me an error on mismatching length of x and y,
althought a plot was generated properly without the last two
lines.

Any suggestion will be appreciated.

Winson Taam
Department of Math. & Stat.
Oakland University
Rochester, MI 48309

tel: 248-370-3438

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