I\'d like to put a degree symbol on the x axis but the result has an extra space that I can\'t seem to get rid of. The text should read \'Temperature (*C)\', not \'Temperature (
Do you need your xlabel to be an expression? You could try pasting it in directly. Something like this works:
set.seed(1) ggdat<-data.frame(x=rnorm(100),y=rnorm(100)) xlab <- "Temperature (°C)" ggplot(data=ggdat,aes(x=x,y=y)) + geom_point() + labs(x=xlab)