A standard plot provides an x-axis on the bottom and a y-axis on the left side. It is also possible to change the position of these axes. The position can be passed as parameter. The following example will create a plot without axes and then we add two axes, one at the top and the other one on the left side.

plot(1,2, xaxt=’n‘, yaxt=’n‘, ann=FALSE)
axis(3)
axis(4)