enerate a dataset with variables from the original datasets aggregated up on a common geography via <code>tongfen_aggregate</code>.</li>
</ol>
<p>A convenience function to validate geographic TongFen fit via area comparison is available via <code>check_tongfen_areas</code>, it allows to explore and deal with spatial mismatches during TongFen.</p>
<div class="section level3">
<h3 id="aggregation-of-variables">Aggregation of variables<a class="anchor" aria-label="anchor" href="#aggregation-of-variables"></a>
