[R] How to join two plotmath type expressions

[Pascal Oettli]

Hello,

Try this one:

 > mtext(expression(Temperature(degree*C)))

Hope this help

Regards,
Pascal

Le 12/08/15 12:56, Trevor Carey-Smith a écrit :
> 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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