<span class="op">(</span><span class="va">RN3</span>, mode<span class="op">=</span><span class="st">"undirected"</span>, diag <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span>
<span class="fu"><a href="https://rdrr.io/pkg/igraph/man/V.html" class="external-link">V</a></span><span class="op">(</span><span class="va">g3</span><span class="op">)</span><span class="op">$</span><span class="va">size</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/pkg/