 and <code>p</code>.</p>
</dd>
<dt>hilo</dt><dd><p>hi/low compliance: a factor with levels <code>hi</code> amd
<code>lo</code>.</p>
</dd>
<dt>week</dt><dd><p>numeric: week of test.</p>
</dd>
<dt>ID</dt><dd><p>subject ID: a factor.</p>
</dd>
<dt>trt</dt><dd><p>a factor with levels <code>placebo</code>, <code>drug</code> and
<code>drug+</code>, a re-coding of <code>ap</code> and <code>hilo</code>.</p>
</dd>
</dl>



<h3>Details</h3>

<p>Dr A. Leach tested the effects of a drug on 50 children with a history of