3 contingency table.
</p>

<dl>
<dt><code>litter</code></dt><dd><p>litter size, a numeric vector</p>
</dd>
<dt><code>treatment</code></dt><dd><p>treatment, a factor with levels <code>A</code> <code>B</code></p>
</dd>
<dt><code>deaths</code></dt><dd><p>number of depletions, a factor with levels <code>0</code> <code>1</code> <code>2+</code></p>
</dd>
<dt><code>Freq</code></dt><dd><p>cell frequency, a numeric vector</p>
</dd>
</dl>



<h3>Source</h3>

<p>Goodman, L. A. (1983)
The analysis of dependence in cros