ersions/3.5/Reso…     2 is.na  &lt;list […</span></a>
<a class="sourceLine" id="cb7-19" data-line-number="19"><span class="co">#&gt; 10 /Library/Frameworks/R.framework/Versions/3.5/Reso…     2 !      &lt;list […</span></a>
<a class="sourceLine" id="cb7-20" data-line-number="20"><span class="co">#&gt; # … with 25 more rows</span></a></code></pre></div>
<p>This added two columns to our data frame, <code>func</code> a column of type <code>character</code> indicating each function called and <code>arg