[R] xyplot main title question

Dieter Menne
2005-09-25T18:32:55Z

Pogoda, Wendy <wpogoda <at> coba.usf.edu> writes:

>
> When I use the xyplot function (lattice library) the titles are too long
....
How can I change the main title text size in the xyplot function? .

This IS confusing. General rule: whenever you use a function from
lattice/trellis, par(...) is the wrong way to go. Use trellis.par.get and
trellis.par set instead.

library(lattice)

mt = trellis.par.get("par.main.text")
mt$cex = 0.7
# may also set other options, such as font.
trellis.par.set("par.main.text",mt)

xyplot(lat ~ long , data = quakes,
  main="This is a very long text This is a very long text ")

----
My way if lost in lattice:

trellis.par.get()

Copy the output you to a text file, and keep it on your disk. Whenever you want
to set a graphics options, search that file for something that comes close, and
use the above get/set.
Don't forget to update the file on lattice updates, these settings change.
Use show.settings() helps sometimes, but it's not complete.

Dieter