<code>age</code> from a
continuous variable to a count so these slightly unbalanced
data can be analyzed as balanced.
</p>
</dd>
</dl>



<h3>Details</h3>

<p>These data are described in Goldstein (1987) as data on the
height of a selection of boys from Oxford, England versus a
standardized age.
</p>


<h3>Source</h3>

<p>Pinheiro, J. C. and Bates, D. M. (2000)
<em>Mixed-Effects Models in S and S-PLUS</em>,
Springer, New York.  (Appendix A.19)
</p>


<h3>Examples</h3>

<pre><code class='language-R'>data(Oxb