[R] lattice x(y)lab and expression

[Sundar Dorai-Raj]

Another question about lattice:

Is there a way to use plotmath in the labels and strips?

E.g.

xyplot(y~x|group,data=test.df,
       panel=function(x,y,subscripts,df) {
         llines(x,y,col="black",lwd=2)
         llines(x,df[subscripts,"lowerCI"],lty=2,col="#aaaaaa")
         llines(x,df[subscripts,"upperCI"],lty=2,col="#aaaaaa")
       },
       strip=function(...) {
         # not sure what to put here
         # but I would like something like
         # substitute(gamma[r]==2*pi*r,list(r=group))
         strip.default(strip.names=c(F,F),...)
       },
       par.strip.text=list(col="white",font=7),
       xlab=expression(rho),                     # this is ignored
       ylab=expression(f[r]*group("(",rho,")"))  # this is ignored
       df=test.df,as.table=T)

-- 

Sundar Dorai-Raj, Ph.D.
Statistical Methods Engineer
PDF Solutions, Inc.
(972) 889-3085 x216
(214) 392-7619 cell
sundard at pdf.com
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