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

by

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))

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