Say I want to modify a ggplot axis label with the str_to_title() function.
library(tidyverse) mtcars %>% ggplot(aes(x = wt, y = mpg)) + geom_point() + labs(x = ~str_to_title(.x)) Rather than my x-axis being labeled 'Wt' it will be labeled 'str_to_title(.x)'. Is there a way to apply functions within the labs() function?
labs doesn't do programmatic NSE like many other components of ggplot2. One option is to define the columns programmatically, use aes_ and as.name (or other ways too) and it'll work.
library(ggplot2) library(stringr) # str_to_title xx <- "wt"; yy <- "mpg" ggplot(mtcars, aes_(x = as.name(xx), y = as.name(yy))) + geom_point() + labs(x = str_to_title(xx)) 
