label="anchor" href="#exercise-13-4-robust-allometric-line-fitting-for-ians-leaf-data"></a>
</h2>
<p><em>Repeat the analysis of Ian’s leaf economics data, as in Code
Boxes 13.3-13.4, using robust=TRUE. Do results work out
differently?</em></p>
<div class="sourceCode" id="cb11"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="va">leafSlopes</span> <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/pkg/smatr/man/sma.html" class="external-link">sma</a></span><