[R] controlling figure dimension/location
Uwe Ligges
ligges at statistik.uni-dortmund.de
Wed Mar 13 10:03:17 CET 2002
"Michael D. Sohn" wrote:
>
> I'm making two plots, one on top of the other. On the upper plot, I do
> not print the x-label or the x-tick-label. To reduce space, I'd like to
> keep the white space between the two figures at a minimum. However, I
> can't figure out how to methodically reduce the space while maintaining
> the same figure dimensions for both plots. I could add margin space
> below the lower plot and reduce space above the lower plot but that
> leaves a bunch of whitespace at the bottom of the figure. What command
> am I missing?
> thanks,
> Mike
>
> Example commands:
> mypar <- par(no.readonly=T)
> par(mfcol=c(2,1))
> par(mar=c(5,4,1,1))
> plot(rnorm(100), ylim=c(-3,3), xlab="", axes=F)
> axis(1, at=seq(0,100,20), labels=c("","","","","",""))
> axis(2, at=seq(-3,3,1))
> box()
> plot(rnorm(100), ylim=c(-3,3), axes=F)
> axis(1, at=seq(0,100,20))
> axis(2, at=seq(-3,3,1))
> box()
> par(mypar)
So you need more vertical space for the second than for the first plot.
I would suggest to play with layout() and par(mar=...), but I'm not sure
whether it is easy to calculate the distances *exactly*. Other
suggestions are welcome.
If you'll need only one figure of that kind, just use something like
par(mfcol=c(2,1))
par(mar=c(0.5,4,5,1)) ##### changed
plot(rnorm(100), ylim=c(-3,3), xlab="", axes=F)
axis(1, at=seq(0,100,20), labels=c("","","","","",""))
axis(2, at=seq(-3,3,1))
box()
par(mar=c(5,4,0.5,1)) ####### added
plot(rnorm(100), ylim=c(-3,3), axes=F)
axis(1, at=seq(0,100,20))
axis(2, at=seq(-3,3,1))
box()
and cut off the unused spaces with another appropriate software after
that.
Uwe Ligges
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