.9   66     5   6</span></code></pre></div>
<ul>
<li><code>recode_as_na_if</code></li>
</ul>
<p>This function allows one to deliberately introduce missing values if a column meets a certain threshold of missing values. This is similar to <code>amputation</code> but is much more basic. It is only provided here because it is hoped it may be useful to someone for whatever reason.</p>
<div class="sourceCode" id="cb28"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="fu"><a href="https: