[R] How to write "%" before superscript?

Barry Rowlingson B.Rowlingson at lancaster.ac.uk
Tue May 2 19:00:45 CEST 2006

Larsen, Thomas wrote:
> I would like to write atom% 15N in the ylab of a plot - "15" should be
> written as superscript. How do I put "%" into the expression? It does
> not work if I type "%" directly after "atom" in the expression below.

string-quote it?

plot(1:10,ylab=expression("atom% "^15*N))


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