On Jul 2, 2015, at 7:46 AM, Rich Shepard wrote:
> Lattice's bwplot() displays and prints (using pdf()) the box.rectangle and
> box.umbrella in a pale blue that is a pale gray on b&w laser printer output.
> I would like to set default options so the box and whiskers are displayed
> and printed in black by modifying ~/.Rprofile by adding a .First() function.
>
> Reading Chapter 7 in Deepayan's book and the ?Startup man page did not
> result in my understanding the correct syntax for
> lattice.options(default.args = list(...)) in ~/.Rprofile. Web searches did
> not find guidance, either.
>
> Would appreciate help on learning how to set these options so they are
> effective when R is invoked.
The lead-in to section 7.2 mentions `trellis.par.get`, but in order to change
anything you need to use `trellis.par.set` as was illustrated in the pages
leading up to that section:
trellis.par.set(box.umbrella=list(col="black"))
bwplot(decrease ~ treatment, OrchardSprays)
trellis.par.set(box.rectangle=list(col="black"))
bwplot(decrease ~ treatment, OrchardSprays)
Could do it all at once with:
trellis.par.set(list(
box.umbrella=list(col="black"),
box.rectangle=list(col="black")
)
And Sarkar mentions that this form can be used to create a theme. You may want
to investigate the function `standard.theme` and read section 7.1.4 of that
chapter again.
--
David Winsemius
Alameda, CA, USA
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