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]]
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