title: R gsub add leading line break
body: <p>I need to add a leading lines break "\n" to a list of axis label names in R. I cannot work out how to do this with gsub. For example, I need "Q1\n/\n15" to read "\nQ1\n/\n15". Neither google nor the help commands are leading me to the answer. Any advice?</p>
  
  <p>Thanks in advance.</p>