title: How to extract everything after a specific string?
body: <p>I'd like to extract everything after "-" in vector of strings in R.</p>
  
  <p>For example in :</p>
  
  <pre><code>test = c("Pierre-Pomme","Jean-Poire","Michel-Fraise")
  </code></pre>
  
  <p>I'd like to get </p>
  
  <pre><code>c("Pomme","Poire","Fraise")
  </code></pre>
  
  <p>Thanks !</p>