title: Split column into multiple columns R
body: <p>I have a data frame column that I need to split into 3 separate column. Looks like this:</p>
  
  <pre><code>I:500-600
  I:700-900
  II:200-250
  </code></pre>
  
  <p>I'd like to split this into the following 3 columns:</p>
  
  <pre><code>V1 V2 V3
  I 500 600
  I 700 900
  II 200 250
  </code></pre>
  
  <p>This has proved slightly trickier than I had hoped. Any help would be appreciated.</p>