[R] How to join two plotmath type expressions

[arun]

HI,
Try this:
plot(1:10, type='n')
 newtxt<-bquote(paste("Temperature", "(",degree*C,")",sep=""))
 mtext(newtxt,3)

A.K.



----- Original Message -----
From: Trevor Carey-Smith <trevor.carey-smith at niwa.co.nz>
To: r-help at r-project.org
Cc: 
Sent: Tuesday, August 14, 2012 11:56 PM
Subject: [R] How to join two plotmath type expressions

If I have two variables set, one of which holds an expression, for example:

> label <- 'Temperature'
> unit <- expression(paste(degree,'C'))

how can I join them together for use in mtext (or equivalent)? The
following is conceptually what I want to do, but will obviously not work:

> plot(0:1)
> mtext(paste(label,unit))

Preferably, I would like this to work if one, both or neither of label
and unit are expressions.

Thanks,
Trevor.
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