<span id="cb26-6"><a href="Intro.html#cb26-6"></a></span>
<span id="cb26-7"><a href="Intro.html#cb26-7"></a><span class="co"># Apply the function to each column (vector)</span></span>
<span id="cb26-8"><a href="Intro.html#cb26-8"></a><span class="co"># This iterated part can and should be automated.</span></span>
<span id="cb26-9"><a href="Intro.html#cb26-9"></a>df<span class="op">$</span>a &lt;-<span class="st"> </span><span class="kw">fix_missing</span>(df<span class="op">$</span>a)</span>
<span id="cb26-