How to automatically break a caption over multiple lines using R?

[jeromyanglim]

I have a set of survey items which I want to show as titles to individual graphs. I want the titles to automatically wrap over multiple lines as required.

What is a good strategy for implementing a form of word wrapping in R?

[jeromyanglim]

This thread on word wrapping on R Help assisted

Take this example string:

x <- 'This is a long sentence that needs to be broken over multiple lines'

Then apply the following command

paste0(strwrap(x, width=30), collapse='\n')

• paste0: a functino that combines strings; collapse is an argument that specifies a separator when combining multiple elements of a character vector. In this case I use the line separator \n
• strwrap: function that breaks strings into separate elements of a character vector. Width is the number of columns before wrapping.

It produces:

"This is a long sentence that\nneeds to be broken over\nmultiple lines"