[R] 'symbols' not drawing correctly in the 'y' dimension

[Damián Cirelli]

Ah! That works. Thank you very much. I interpreted from ?symbols that
with inches=F getting the units from x, it was enough to coordinate
the units in y. I did not know about asp.

Thanks again
D



On 9 May 2013 15:12, David Carlson <dcarlson at tamu.edu> wrote:
> Change the first line to
>
> plot(c(0, 2), c(0, 2), asp=1)
>
> That will set the aspect ratio between the vertical and horizontal axes to
> be equal.
>
>
> -------------------------------------
> David L Carlson
> Associate Professor of Anthropology
> Texas A&M University
> College Station, TX 77840-4352
>
> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
> Behalf Of Damián Cirelli
> Sent: Thursday, May 9, 2013 3:58 PM
> To: r-help at r-project.org
> Subject: [R] 'symbols' not drawing correctly in the 'y' dimension
>
> Hello nice R people,
>
> I'm struggling with the following code:
>
> plot(c(0, 2), c(0, 2))
> symbols(1, 1, circles=0.5, add=T, inches=F) symbols(1, 1, squares=1, add=T,
> inches=F) abline(v=c(0.5, 1.5), lty=2) abline(h=c(0.5, 1.5), lty=2)
>
> The a-b lines in the vertical direction coincide perfectly with the borders
> of both the circle and the square drawn with 'symbols'.
>
> However, the a-b lines in the horizontal direction, clearly show that the
> circle is larger in the y-dimension than radius 0.5; same with the square.
>
> Using 'locator', shows the "y-radius" closer to 0.56
>
> Any ideas what could be causing this? I have tried this in 3 different
> machines,same result. Two are running Ubuntu with the R from the repo, one
> is running Slackware with R version 2.15.3 compiled from source.
>
> Any help much appreciated,
> Damian
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>