Question

I’m struggling with adding a superscript to the labels of a plot.
I would like to have the ‘3’ in the labels (..m^3) as superscript. I tried expression(), substitute() etc. but didn’t find the correct solution.

values <- c(2, 4, 5)
pie(values, labels = paste(values, "m^3") )

Thanks for any hint!

Answer 1

A bit cumbersome workaround:

foo <- sapply(as.list(values), function(x) bquote(.(x) ~ m^3))
pie(values, labels = as.expression(foo))