s="dv">1</span>, <span class="at">end =</span> <span class="sc">-</span><span class="dv">1</span>)</span>
<span id="cb8-11"><a href="#cb8-11" tabindex="-1"></a><span class="co">#&gt; [1] &quot;Hadley Wickham&quot; &quot;Ada Lovelace&quot;</span></span>
<span id="cb8-12"><a href="#cb8-12" tabindex="-1"></a><span class="fu">str_sub</span>(<span class="fu">c</span>(hw,al), <span class="at">start =</span> <span class="fu">c</span>(<span class="dv">1</span>,<span class="dv">1</span>), <span class="at">end =</spa