/td>
      </tr><tr><td>
          <p><code><a href="mutate.html">mutate()</a></code> </p>
        </td>
        <td><p>Add/modify/delete columns</p></td>
      </tr><tr><td>
          <p><code><a href="select.html">select()</a></code> </p>
        </td>
        <td><p>Select or drop columns</p></td>
      </tr><tr><td>
          <p><code><a href="summarize.html">summarize()</a></code> <code><a href="summarize.html">summarise()</a></code> </p>
        </td>
        <td><p>Aggregate data using summary statis