de r">
<code class="sourceCode R"><span><span class="va">x2</span> <span class="op">==</span> <span class="op">-</span><span class="fl">91</span></span>
<span><span class="co">#&gt; [1] FALSE FALSE FALSE FALSE FALSE  TRUE</span></span>
<span><span class="va">x2</span> <span class="op">==</span> <span class="st">"Missing"</span></span>
<span><span class="co">#&gt; [1] FALSE FALSE FALSE FALSE FALSE  TRUE</span></span></code></pre></div>
<p>Similar methods have been added to the primitive functions <code class