R help - Dec 2010 - Plot's aspect ratio and pty

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

It does for me under R-2.12.0 32-bit on Windows with the windows() 
device, so:

Which version of R, which OS, which device do you use?

Uwe Ligges




On 13.12.2010 07:30, Marcin Kozak wrote:
> 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
>
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