Can!</strong> All we have to do is use <code>recode_as_na_for</code>:</p>
<div class="sourceCode" id="cb30"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">head</a></span><span class="op">(</span><span class="fu"><a href="reference/recode_as_na_for.html">recode_as_na_for</a></span><span class="op">(</span><span class="va">airquality</span>,criteria<span class="op">=</span><span class="st">"gt"</span>,value<span 