How to use simultaneously superscript and variable in a axis label with ggplot2

Question

I would like to use together a variable (here the vector element \"type\") and a unit containing a superscript (here m^2) inside n axis label.

data <- li         


        

Answer 1

It works with bquote:

xlab(bquote('surface of' ~ .(type) ~ '/' ~ m^{2}))