R: ggplot2, can I set the plot title to wrap around and shrink the text to fit the plot?

Question

library(ggplot2)

my_title = \"This is a really long title of a plot that I want to nicely wrap \\n and fit onto the plot without having to manually add the backslas         


        

Answer 1

You have to manually choose the number of characters to wrap at, but the combination of strwrap and paste will do what you want.

wrapper <- function(x, ...) 
{
  paste(strwrap(x, ...), collapse = "\n")
}

my_title <- "This is a really long title of a plot that I want to nicely wrap and fit onto the plot without having to manually add the backslash n, but at the moment it does not"
r + 
  geom_smooth() + 
  ggtitle(wrapper(my_title, width = 20))