R help - Jan 2006 - Equal length axis

Dear useRs,
I am having difficulty to plot graphics with mfrow command, where both 
axis are equal length. Below is sample code, which plots rectangles 
instead of squares:

par (mfrow=c(3,3))
qqnorm(a)
qqnorm(b)
...
..

Thanks in advance for any pointers or notes.

Andrej Kastrin wrote:
>Dear useRs,
>I am having difficulty to plot graphics with mfrow command, where both 
>axis are equal length. Below is sample code, which plots rectangles 
>instead of squares:
>
>par (mfrow=c(3,3))
>qqnorm(a)
>qqnorm(b)
>...
>..
>
>Thanks in advance for any pointers or notes.
>
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>
>  
>
I done it myself:
par(mfrow=c(3,3),pty="s")
etc...