Hi all,

I have one question on xyplot() function.

I am trying to produce a graph by this code.

tmp <- data.frame(a=rnorm(20),
                 b=rnorm(20),
                 rho=factor(rep(1:2, c(10,10))),
                 k=factor(rep(1:5,4)))

tmp.lattice <-
xyplot(a ~ b | rho*k, data=tmp,
      par.strip.text=list(font=5),
      strip=function(...) strip.default(..., strip.names=c(TRUE,TRUE)))

names(tmp.lattice$condlevels) <- c("k","r")
tmp.lattice

You can see that on the strip, I have both k and rho in greek letters. I
ONLY want rho to be greek letter and remain k as an ordinary lower case 'k'.
The other question is, can I change the ":" into "=" in the strip? Thanks a
lot.

Zijiang

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