s="va">dat</span> <span class="op">&lt;-</span> <span class="va">small_mammal_data</span><span class="op">[</span><span class="va">small_mammal_data</span><span class="op">$</span><span class="va">siteID</span> <span class="op"><a href="https://rdrr.io/r/base/match.html" class="external-link">%in%</a></span> <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">'HARV'</span>,<span class="st">'JORN'</span><span class="op">)</span>