Hi
In the development version of R, there is a new showViewport() function
that might help with debugging this sort of thing. Try ...
showViewport()
... or possibly ...
showViewport(newpage=TRUE)
... just after drawing your plot.
Paul
Deepayan Sarkar wrote:
On Tue, Apr 28, 2009 at 11:51 AM, Sebastien Bihorel
<Sebastien.Bihorel at cognigencorp.com> wrote:
Dear R-users,
I am trying to understand what the different padding arguments in
trellis.par.set are exactly controlling the space around lattice plots. I
have used the following code as a basis for testing but it did not really
help me to visualize how the value of each argument changes the margins and
the plotting area. I guess a better way to visualize the effects of these
padding items would be to create colored polygons for each related "area" of
interest... but I would need to know what are these areas beforehand!
You can retrieve the undelying grid layout and show it using
library(grid)
grid.show.layout(lattice:::lattice.getStatus("layout.details")$page.layout)
which is close to what you are describing. Otherwise, there's no easy
way to insert polygons in these areas that I know of.
You could try setting negative padding values to see what they do.
-Deepayan
Any advise on how to improve this code would be greatly appreciated.
Sebastien
#######################
library(lattice)
foo <-
data.frame(x=rep(seq(10),9),y=rep(seq(10),9),z=rep(0,90),id=rep(seq(9),each=10))
plot1 <- xyplot(y+z~x|id,
data=foo,
type=c("p","l"),
distribute.type = TRUE,
main="This is a test",
sub="Subtitle",
auto.key=T)
trellis.device(pdf, file = "trellis_par_test.pdf",
paper="letter",
#family="Courier",
theme = list(fontsize = list(text = 10, points = 10)))
trellis.par.set(layout.widths =list(left.padding=0,
right.padding=0),
layout.heights=list(top.padding =1,
main.key.padding =1,
axis.xlab.padding=1,
key.sub.padding =1,
bottom.padding =1),
axis.components=list(top=list(tck=1,
pad1=1,
pad2=1), right=list(tck=1,
pad1=1,
pad2=1))) print(plot1)
dev.off()
###########################
--
*Sebastien Bihorel, PharmD, PhD*
PKPD Scientist
Cognigen Corp
Email: sebastien.bihorel at cognigencorp.com
<mailto:sebastien.bihorel at cognigencorp.com>
Phone: (716) 633-3463 ext. 323