de>"rows"</code>) and
variables (<code>"cols"</code>). The stat layers <code><a href="stat_rows.html">stat_rows()</a></code> and <code><a href="stat_rows.html">stat_cols()</a></code> simply
filter the data frame to one of these two.</p>
<p>The geom layers <code>geom_rows_*()</code> and <code>geom_cols_*()</code> call the corresponding
stat in order to render plot elements for the corresponding factor matrix.
<code>geom_dims_*()</code> selects a default matrix based on common practice, e.g.
points for rows a