see ?par . Use the argument asp=TRUE.
Mercutio Florid wrote > I use several different versions of R, including RGui on Windows and > rstudio on Linux. In all cases, I use graphical commands, such as > image(). > > image() displays rectangles, but I want to be able to guarantee that the > heights of those rectangles will always equal the widths. Typically, the > rectangles come out with notable asymmetries. > > Thus, if I need to draw a perfect circle with square pixels, I usually get > a squashed ellipse with oblong pixels. > > I have experimented with other commands, and I don't need to continue to > use image() if some other command would be more suitable. > > Thanks. > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@ > 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. -- View this message in context: http://r.789695.n4.nabble.com/equal-horizontal-and-vertical-proportions-in-graphics-tp4680716p4680727.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@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.