id="cb40"><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/custom_na_recode.html">custom_na_recode</a></span><span class="op">(</span><span class="va">some_data</span>,func <span class="op">=</span> <span class="st">"mean"</span>, grouping_cols <span class="op">=</span> <span class="st">"ID"</span>, across_columns <span class="op">=</span