>NA</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] FALSE</span>
<span class="r-in"><span><span class="co"># FALSE</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="cn">NA</span><span class="op">==</span><span class="cn">NA</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [1] NA</span>
<span class="r-in"><span><span class="co"># NA</span></span></span>
<span class="r-in"><span