R help - May 2009 - Graphic aspect ratio

Hi

I've been playing with a 3x2 graphics device using the default size as it
appears on screen. This has given me tall thin plots which I can resize by
dragging the window and increasing the window width. However I was wondering
if I can force R to produce square plots or set the actual aspect ratio. asp
seems to affect data units, not on-screen pixel units.

thanks

mike
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Hi


MikSmith wrote:
> Hi
> 
> I've been playing with a 3x2 graphics device using the default size as
it
> appears on screen. This has given me tall thin plots which I can resize by
> dragging the window and increasing the window width. However I was
wondering
> if I can force R to produce square plots or set the actual aspect ratio.
asp
> seems to affect data units, not on-screen pixel units.

Sounds like you need a layout, for example ...


par(mar=c(4, 4, 1, 1))
layout(matrix(1:6, nrow=3),
       widths=rep(2, 2),
       heights=rep(1, 3),
       respect=TRUE)
for (i in 1:6) plot(1:i)


Paul

> thanks
> 
> mike
-- 
Dr Paul Murrell
Department of Statistics
The University of Auckland
Private Bag 92019
Auckland
New Zealand
64 9 3737599 x85392
paul at stat.auckland.ac.nz
http://www.stat.auckland.ac.nz/~paul/