(</span><span class="va">plant_richness_df</span><span class="op">)</span></span>
<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="st">"distance_matrix"</span><span class="op">)</span></span>
<span><span class="va">xy</span> <span class="op">&lt;-</span> <span class="va">plant_richness_df</span><span class="op">[</span>, <span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span