Hi all,
on Saturday I had asked the following question:
> If I'm doing a Trellis plot with
> scales=list(relation="free")
> is there any reasonable way to force Trellis to include
> zero in each axis?
Thanks to Frank Harell, Bill Venables, and Nick Ellis
for their answers.
They pointed out that the solution was using a prepanel function,
roughly like this:
prepanel.0 <- function(x,y) {
# forces that zero is included on the axes
list(xlim=range(x,0), ylim=range(y,0))
}
xyplot(y ~ x | type, data=df, prepanel=prepanel.0)
unfortunately, it appears that this works fine only as long
as I'm _NOT_ using scales=list(relation="free") !
Then the prepanel.0 results apparently will be ignored by trellis.
Or am I getting something else wrong now?
Lutz
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