-----------------------------</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; Use the summary() function to print coefficients by group.</span></span></code></pre></div>
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<div class="section level2">
<h2 id="code-box-13-5-residual-plots-for-brain-body-size-relationship">Code Box 13.5: Residual plots for brain-body size relationship<a class="anchor" aria-label="anchor" href="#code-box-13-5-residual-plots-for-brain-body-size-relationship"></a>
</h2>
<div class="sou