Hi
On 19/05/2011 9:43 p.m., Stuber Thomas TA.I_BB_BS.0701
wrote:> Hello R-Community
>
> I did a lot of research, but i found no answer for my issue.
>
> I try to plot multiple Plots. I do this with the layout() function.
> The following two pictures show the defined layout:
> http://www.stuber.info/layout_1.jpg
> http://www.stuber.info/layout_2.jpg
>
> The final plots looks like:
> http://www.stuber.info/plot_1.jpg
> http://www.stuber.info/plot_2.jpg
>
>
> So far is all right. Now my problem is, that I'm not able to make the
borders as needed. See the layout_1.jpg and layout_2.jpg again. The colored
lines represents the needed borders.
> I tried to draw lines into every plot to bulit a global border. But
it's a hack job and it's "ugly". I also tried to make the
layout with the par() or the split.screen() functions, but without success. To
interleave layouts is also not possible in R (or does anybody know a way to do
it?)
>
> Does anyone can help me with this issue?
You can take advantage of the fact that plot 'i' is allocated regions
based on the *range* of rows and columns in which 'i' appears in the
layout matrix. For example, in the following simple layout, the second
plot is in the middle and the first plot occupies the entire page ...
layout(rbind(c(1, 0, 0),
c(0, 2, 0),
c(0, 0, 1)))
layout.show(2)
... the only problem being that the matrix you need could get a bit
complex, but because the layout is very regular it's possible to write
simple functions to help out. Here's a somewhat programmatic approach
to generating a slight simplification of your layout ...
plotMatrix <- function(i) {
matrix(c(0, i), nrow=3, ncol=3)
}
regionMatrix <- function(i, nr=1, nc=1) {
m <- matrix(0, nrow=nr*3, ncol=nc*3)
m[1, 1] <- i
m[nr*3, nc*3] <- i
m
}
layoutMatrix <- rbind(cbind(plotMatrix(1), plotMatrix(2),
plotMatrix(3), plotMatrix(4)),
cbind(plotMatrix(5), plotMatrix(6),
plotMatrix(7), plotMatrix(8))) +
rbind(cbind(regionMatrix(9, nc=2), regionMatrix(10, nc=2)),
cbind(regionMatrix(11, nc=2), regionMatrix(12, nc=2)))
layout(layoutMatrix)
for (i in 1:8)
plot(i)
par(mar=rep(0, 4))
for (i in 1:4) {
plot.new()
box(lty=3)
}
... OR you could use the 'grid' package, where layouts are more flexible
and this sort of thing is easy (especially if your plots really are only
simple, unadorned barplots and scatterplots like in the example images
you posted).
Paul
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Dr Paul Murrell
Department of Statistics
The University of Auckland
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