a href="https://rdrr.io/r/base/unique.html" class="external-link">unique()</a></code> across a list of vectors</li>
<li>
<code><a href="reference/sclass.html">sclass()</a></code> - <code><a href="https://rdrr.io/r/base/class.html" class="external-link">class()</a></code> a list</li>
<li>
<code><a href="reference/sdim.html">sdim()</a></code> - <code><a href="https://rdrr.io/r/base/dim.html" class="external-link">dim()</a></code> across a list, or S4 object, or non-list object</li>
<li>
<code><a href="referen