>by = "cddc"</code>).
However, the frequency net is similar to a 2x2 table insofar as
its perspectives (shown by arranging marginal frequencies in a
vertical vs. horizontal fashion) do not suggest an order
or dependency (in contrast to trees or mosaic plots).
Additionally, the frequency net allows showing
3 kinds of (marginal, conditional, and joint) probabilities.</p>
<p>See the article by Binder K, Krauss S and Wiesner P (2020).
A new visualization for probabilistic situations containing two binary events