Using labeller = label_both
allows both the variable name and value to appear in a facet, e.g.:
ggplot(mtcars, aes(x = hp, y = mpg)) + geom_point() +
facet_grid(vs ~ cyl, labeller = label_both)
I wanted to change the sep
argument of label_both
to an equal sign (i.e., sep = " = "
). I found a solution that seems to work for me right now:
label_both_w_equal <- function(labels) label_both(labels, sep = " = ")
ggplot(mtcars, aes(x = hp, y = mpg)) + geom_point() +
facet_grid(vs ~ cyl, labeller = label_both_w_equal)
Because all I wanted to do was change the sep
, I was wondering if there was another "built-in" way to do. For example, I started with what seemed natural to me:
ggplot(mtcars, aes(x = hp, y = mpg)) + geom_point() +
facet_grid(vs ~ cyl, labeller = label_both(sep = " = "))
But this doesn't work.
In any case, the problem is "solved" for now and wasn't too hard to fix. I was just wondering if there was a built-in way to change sep
, or if going the custom labeller route is the intended way to go.