Tuesday, August 11, 2009

Sophisticated axis labels in R

Sometimes you need to put Greek letters or simply a sub index in an axis label of a plot. You could do the following:
xlab=expression(paste("US Markets",~~(omega[kt]),sep=""))
where omega is, well, omega, and [kt] will put a subindex kt. It works for ylab, main, etc.
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2 comments:

  1. AnonymousAugust 11, 2009 at 12:33 PM

    One "problem" I have been having with this is that I can not quite have subscripts or superscripts and/or when I have to alternate between text and numbers... After some trial and error I usually get it... Do you have some nice intuition on that?

    P.S. let me know if you need an English translation of the above :)

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  2. Nelson VilloriaAugust 11, 2009 at 4:50 PM

    Anonymous, try this:

    xlab=expression(
    paste("US Markets",~~(omega[kt])," and",~~(beta[kt]^1),sep="")
    )
    It should give you the superscripts combined with the subscripts and also text in between them.

    Hope it helps

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