<dd><p>type of edges to be used: either <code>"undirected"</code> (the default)
or <code>"directed"</code> (in which case the order of the nodes in each pair matters).</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="value">Value<a class="anchor" aria-label="anchor" href="#value"></a></h2>
    <p>a <code><a href="https://rdrr.io/pkg/graph/man/graphNEL-class.html" class="external-link">graphNEL</a></code> object; can be displayed using
<code><a href="https://rdrr.io/r/graphics/plot.default.