ng objects are masked from ‘package:base’:</span>
<span class="r-msg co"><span class="r-pr">#&gt;</span> </span>
<span class="r-msg co"><span class="r-pr">#&gt;</span>     intersect, setdiff, setequal, union</span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co">## Load example data:</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/data.html" class="external-link">data</a></span><span class="op">(</span><span class="va">Agr