title: Join 3 columns of different lengths in R
body: <p>I have 3 columns </p>
  
  <p>2 are the same length </p>
  
  <p>1 is of a lesser length </p>
  
  <p>here are the columns:</p>
  
  <pre><code>column1 &lt;- letters[1:10]
  
  column2 &lt;- letters[1:15]
  
  column3 &lt;- letters[1:15]
  </code></pre>
  
  <p>I want all 3 columns to be joined together but have the missing 5 values in column1 to be NA?</p>
  
  <p>What can i do to achieve this? a tibble?</p>