title: remove leading zeroes from timestamp %j%Y %H:%M
body: <p>My timestamp is in the form </p>
  
  <pre><code>0992006 09:00
  </code></pre>
  
  <p>I need to remove the leading zeros to get this form:</p>
  
  <pre><code>992006 9:00
  </code></pre>
  
  <p>Here's the code I'm using now, which doesn't remove leading zeros:</p>
  
  <pre><code>prediction$TIMESTAMP &lt;- as.character(format(prediction$TIMESTAMP, '%j%Y %H:%M'))
  </code></pre>