ions of values</p></td>
      </tr><tr><td>
          <p><code><a href="expand_grid.html">expand_grid()</a></code> </p>
        </td>
        <td><p>Create a data.table from all combinations of inputs</p></td>
      </tr><tr><td>
          <p><code><a href="extract.html">extract()</a></code> </p>
        </td>
        <td><p>Extract a character column into multiple columns using regex</p></td>
      </tr><tr><td>
          <p><code><a href="fill.html">fill()</a></code> </p>
        </td>
        <td><p>Fill