ndex="-1"></a><span class="co">#&gt;       x y    </span></span>
<span id="cb7-13"><a href="#cb7-13" aria-hidden="true" tabindex="-1"></a><span class="co">#&gt;   &lt;dbl&gt; &lt;chr&gt;</span></span>
<span id="cb7-14"><a href="#cb7-14" aria-hidden="true" tabindex="-1"></a><span class="co">#&gt; 1    NA y    </span></span>
<span id="cb7-15"><a href="#cb7-15" aria-hidden="true" tabindex="-1"></a><span class="co">#&gt; 2    NA y    </span></span>
<span id="cb7-16"><a href="#cb7-16" aria-hidden="true" tabindex