p>Data frame or tbl, the cells to be displayed.</p></td>
    </tr>
    <tr>
      <th>values</th>
      <td><p>Optional. The column of <code>cells</code> to use as the values of each
cell.  Given as a bare variable name.  If omitted (the default), the <code>types</code>
argument will be used instead.</p></td>
    </tr>
    <tr>
      <th>types</th>
      <td><p>The column of <code>cells</code> that names, for each cell, which column to
use for the value of the cell.  E.g.  a cell with a character value will