title: Rename columns by pattern in R
body: <p>I would like to rename all my columns in a dataframe by a specific pattern.</p>
  
  <p>My input:</p>
  
  <pre><code>Log.NE122  Log.NE244  Log.NE144
  -0.33       0.98        1.0
  </code></pre>
  
  <p>My expected output:</p>
  
  <pre><code> NE122  NE244  NE144
  -0.33   0.98    1.0
  </code></pre>
  
  <p>Cheers.</p>