lls</span>, <span class='va'>header_cells</span>, <span class='va'>direction</span>, drop <span class='op'>=</span> <span class='cn'>TRUE</span><span class='op'>)</span></pre>

    <h2 class="hasAnchor" id="arguments"><a class="anchor" href="#arguments"></a>Arguments</h2>
    <table class="ref-arguments">
    <colgroup><col class="name" /><col class="desc" /></colgroup>
    <tr>
      <th>data_cells</th>
      <td><p>Data frame of data cells with at least the columns 'row'
and 'column', which are <code>nume