name"></a>
</h2>
<p><code><a href="../reference/aggregate_pieces_byname.html">aggregate_pieces_byname()</a></code> bundles renaming and
aggregating tasks in a single function call. First, rows and/or columns
are renamed to the requested <code>piece</code> with the
<code><a href="../reference/rename_to_piece_byname.html">rename_to_piece_byname()</a></code> function. Then, aggregation is
performed via <code><a href="../reference/aggregate_byname.html">aggregate_byname()</a></code>, according to an
<code>aggre