Use superscripts in R axis labels

Question

Using base graphics in R, how can I add superscripts to axis labels, as one might want to when plotting latitude and longitude axes on a map.

Consider this example:<

Answer 1

This is a quick example

plot(rnorm(30), xlab = expression(paste("4"^"th")))

Answer 2

@The Thunder Chimp You can split text in such a way that some sections are affected by super(or sub) script and others aren't through the use of *. For your example, with splitting the word "moment" from "4th" -

plot(rnorm(30), xlab = expression('4'^th*'moment'))

Answer 3

It works the same way for axes: parse(text='70^o*N') will raise the o as a superscript (the *N is to make sure the N doesn't get raised too).

labelsX=parse(text=paste(abs(seq(-100, -50, 10)), "^o ", "*W", sep=""))
labelsY=parse(text=paste(seq(50,100,10), "^o ", "*N", sep=""))
plot(-100:-50, 50:100, type="n", xlab="", ylab="", axes=FALSE)
axis(1, seq(-100, -50, 10), labels=labelsX)
axis(2, seq(50, 100, 10), labels=labelsY)
box()

Answer 4

The other option in this particular case would be to type the degree symbol: ˚

R seems to handle it fine. Type Option-k on a Mac to get it. Not sure about other platforms.