[R] Plot's aspect ratio and pty

[Marcin Kozak]

Dear All,

I've been playing with pty, and it seems it does not produce square
plots as it is expected to (or at least as I expect it to). Consider
this simple example:

par(pty="s"); plot(1:10, 1:10)

This should produce a square plot, right? Well, if you have a look at
the graph, it is not square! So, maybe the limits?

par(pty="s"); plot(1:10, 1:10, xlim = c(0,11), ylim=c(0,11))

No, again not. So let's try and help to equalize everything, just to be sure:

windows(6, 6); par(mar=c(3, 3, 3, 3), pty="s"); plot(1:10, 1:10, xlim
= c(0, 11), ylim = c(0, 11))

Again not!

pty = "s" is to generate a square plotting region, and it does not
seem to do that. Where is my mistake?

Thanks in advance,
Marcin