span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external-link">c</a></span><span class="op">(</span><span class="st">"Day"</span>, <span class="st">"Wind"</span><span class="op">)</span><span class="op">)</span>
<span class="co">#&gt;   variable missing complete percent_complete percent_missing</span>
<span class="co">#&gt; 1    Month       0      153        100.00000        0.000000</span>
<span class="co">#&gt; 2    Ozone      37      116         75.81699       24.183007</span>
<span class=