/code></div>
    </div>

    <div class="ref-description section level2">
    <p>Pairs are processed to produce a graph with the elements
of the pairs as vertices and the pairs as undirected edges.
The result can be displayed using <code><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot</a>()</code> if the
Bioconductor packages <span class="pkg">graph</span> (for the <code>graphNEL</code> object)
and optionally <span class="pkg">Rgraphviz</span> (for plotting) are installed.<