"fa fa-check"></i><b>12.3.1</b> length() size()</a></li>
<li class="chapter" data-level="12.3.2" data-path="140_dataframe.html"><a href="140_dataframe.html#nrows"><i class="fa fa-check"></i><b>12.3.2</b> nrows()</a></li>
<li class="chapter" data-level="12.3.3" data-path="140_dataframe.html"><a href="140_dataframe.html#names-1"><i class="fa fa-check"></i><b>12.3.3</b> names()</a></li>
<li class="chapter" data-level="12.3.4" data-path="140_dataframe.html"><a href="140_dataframe.html#offsetname-findnamename"><