[R] plotting circles with symbols()

Hello, I am not able to plot a circle of a given radius using symbols(). In the example below, the circle appears too large: plot(0, 0, xlim = c(-1, 1), ylim = c(-1, 1)) symbols(0, 0, circles = 1, inches = FALSE, add = TRUE) What's happening? Ery

Re: [R] plotting circles with symbols()

The circle is not too large; it just uses your x-units for the radius and your plotting region isn't square. Here are some things to try: plot(0, 0, xlim = c(-1, 1), ylim = c(-1, 1)) symbols(0, 0, circles = 1, inches = FALSE, add = TRUE) abline(v = c(-1,1)) # shows that x-units 'fit' abline(h =