class="dv">6</span>)</span>
<span id="cb6-5"><a href="#cb6-5" tabindex="-1"></a><span class="co">#&gt; [1] &quot;Hadley&quot;</span></span>
<span id="cb6-6"><a href="#cb6-6" tabindex="-1"></a><span class="fu">substring</span>(hw, <span class="at">first =</span> <span class="dv">1</span>) </span>
<span id="cb6-7"><a href="#cb6-7" tabindex="-1"></a><span class="co">#&gt; [1] &quot;Hadley Wickham&quot;</span></span>
<span id="cb6-8"><a href="#cb6-8" tabindex="-1"></a></span>
<span id="cb6-9"><a href="#cb6-9" t