st-style-type: decimal">
<li>Given a list of datasets on diverse geographies, <strong>generate a correspondence table</strong> that links the geographies and specifies how to aggregate them up to a (least) common geography via <code>estimate_tongfen_correspondence</code>.</li>
<li>
<strong>generate metadata</strong> that specifies how variables can be aggregated up, the <code>meta_for_additive_variables</code> function does this for additive variables.</li>
<li>Use the correspondence table and metadata to g