the implementation stalled and was eventually removed from ggplot2.</p>
</div>
<div class="section level2">
<h2 id="references">References<a class="anchor" aria-label="anchor" href="#references"></a>
</h2>
<ul>
<li>Hofmann H., Vendettuoli M.: Common Angle Plots as Perception-True Visualizations of Categorical Associations, IEEE Transactions on Visualization and Computer Graphics, 19(12), 2297-2305, 2013.</li>
<li>Hurley C.: gclus: Clustering Graphics. R package version 1.3.2. <a href="https://CRAN.R-project