Hi
split.screen() works by maintaining a set of par(fig) settings, so that
a call to screen() is essentially a call to par(fig=<something>).
Hence, an explicit par(fig=<somethingelse>) call mucks up the plot
arrangement made by screen().
Are you trying to use par(fig) to split up a split.screen() screen into
even smaller pieces? If so, you should be able to do that using
split.screen() (see the examples at the bottom of the help page).
Alternatively, you may be able to create the complete plot arrangement
using layout().
Paul
On 21/07/2010 12:14 a.m., Birte Reichstein wrote:
Hi,
I successfully created 3 screens with the following:
fig.mat<-c(0,.5,.5,.5,1,1,0,0,.5,1,.5,1)
fig.mat<-matrix(fig.mat,nrow=3)
fig.mat
split.screen(fig.mat)
I can plot three different plots on those 3 screens, but when I try the
following:
(Trying to create three graphs with a common x-axis but different y-axis on
screen 1)
screen(1)
par(oma=c(3,3,0,0))
par(fig=c(0,1,0,0.33))
par(mar=c(0,2,0,0.2))
plot(x,y,ylab="juveniles",type="b")
par(fig=c(0,1,0.33,0.66),new=T)
par(mar=c(0,2,0,0.2))
plot(x,y,ylab="males",type="l",xaxt="n")
par(fig=c(0,1,0.66,0.99),new=T)
par(mar=c(0,2,0.2,0.2))
plot(x,y,ylab="females",type="p",xaxt="n")
title(xlab="class",ylab="frequency",outer=T)
Screen 1 seems to expand over the whole plotting device instead of being
restricted to only the region appointed to Screen 1.
Changing "fig=c(0,1,0,0.33)" to " fig=c(0,0.5,0,0.33)" gives me the result I was looking
for. Why do I have to use "fig" in respect to the original plotting device and not in respect to
the new one (screen1) ?
I thought the use of split.screen() gives the advantage of having three regions
that are treated as separate plotting devices, so that my original code should
work. But I guess that I got it wrong ?!?
Thanks for explanations!
/Birte
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