Hi all,
I'm trying to do an example in Deepayan Sarkar's Lattice book. It
involves making a barchart based on the Titanic dataset. I can get
the barchart to plot fine; however, when I try to edit panel.grid, I
get an error:
> titan<-barchart(Class ~ Freq | Age + Sex, data =
as.data.frame(Titanic), groups=Survived, stack=TRUE, layout=c(4,1),
auto.key=list(title="Survived", columns=2), scales=list(x="free"))
> titan <--- this plot is fine
> update(titan, panel = function(...) { panel.barchart(...)}) <---
same thing; also fine
> update(titan, panel = function(...) { panel.grid(h = 0,v = -1)
panel.barchart(...)})
Error: syntax error
Any advice? I'm using R 2.8.1 on OS X Leopard if it helps.
Thanks,
Chris Jones
c_jo...@mit.edu
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