ong> (<code>axis1</code>, <code>axis2</code>, etc.)</p></li>
</ul><p>Use <code>x</code>, <code>alluvium</code>, and/or <code>stratum</code> for data in lodes format
and <code>axis[0-9]*</code> for data in alluvia format (see <code><a href="alluvial-data.html">alluvial-data</a></code>).
Arguments to parameters inconsistent with the format will be ignored.
Additionally, each <code>stat_*()</code> accepts the following optional
aesthetics:</p><ul><li><p><code>y</code></p></li>
<li><p><code>weight</code></p></l