[R] Quiz: Who finds the nicest form of X_1^\prime?

Karl Ove Hufthammer karl at huftis.org
Wed Apr 13 16:05:49 CEST 2011

Marius Hofert wrote:

> Haha, I found a hack (using the letter "l"):
> plot(0,0,main=expression(italic(X)[1]^bolditalic("l")))

Why cheat when you can use a *real* prime character:

  plot(0, 0, main=expression(paste(italic(X)[1],"\u2032")))

Karl Ove Hufthammer

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