title: How can I delete all texts in my data using dplyr?
body: <p>If my data looks like this:</p>
  
  <pre><code>q2_3  q2_4  q2_5
  &lt;chr&gt; &lt;chr&gt; &lt;chr&gt;
  1    1A    2B   3C
  2    4D    5E   6F
  </code></pre>
  
  <hr>
  
  <p>How can I delete only texts?</p>
  
  <p>I want only numbers to remain!</p>