  </tr>
    <tr>
      <th>facet_na</th>
      <td><p>TRUE or FALSE of whether to include facet_var NA values. Defaults to TRUE.</p></td>
    </tr>
    <tr>
      <th>facet_ncol</th>
      <td><p>The number of columns of facetted plots.</p></td>
    </tr>
    <tr>
      <th>facet_nrow</th>
      <td><p>The number of rows of facetted plots.</p></td>
    </tr>
    <tr>
      <th>facet_scales</th>
      <td><p>Whether facet_scales should be "fixed" across facets, "free" in both directions, or free in just one 