Symbols and superscript/subscripts in axis labels

[waschbaer]

Hi @all

I would like to have a symbol and some sub- and superscripts in my y-
axis labels. Any idea how to solve that? The label should look like:

d15N-NO3 (%0) which means the delta 15 N isotopic ratio of NO3 in per-
mille.

Any suggestions are greatly appreciated.

Cheers
Martin

[waschbaer]

[Dennis Murphy]

Hi:

I know little about chemistry so the expression may end up as nonsense, but it's an excuse to show how to use subscripts and superscripts in an expression. See ?plotmath for a list of operators and a useful example.

df <- data.frame(x = 1, y = 1)
ggplot(df, aes(x, y)) + geom_point() + xlab(expression(paste(delta^{15},'N-N',O[3]~'(%0)')))

paste() is used here to separate the mathematical parts of the expression from the text parts; the tilde represents insertion of space.

HTH,
Dennis

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[waschbaer]

Thanks for that...that works like a charm.

Martin

[Katya Hafich]

I'm using this code, but would like to make the 0 in the (%0) subscript, so it would read  (‰).  Any suggestion? Thanks.