jects:</p>
<div class="sourceCode" id="cb19"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span><span class="fu"><a href="https://rdrr.io/r/base/character.html" class="external-link">as.character</a></span><span class="op">(</span><span class="va">x4</span><span class="op">)</span></span>
<span><span class="co">#&gt; [1] "Left"   "Middle" "Right"  NA</span></span></code></pre></div>
<p>Similarly, the function <code class="sourceCode r"><span class="fu">as.character</span>()</code> drops
the