data <span class='op'>=</span> <span class='va'>iris</span>, fun <span class='op'>=</span> <span class='kw'>function</span><span class='op'>(</span><span class='va'>data</span>, <span class='va'>...</span><span class='op'>)</span> <span class='fu'><a href='https://rdrr.io/r/base/nrow.html'>nrow</a></span><span class='op'>(</span><span class='va'>data</span><span class='op'>)</span>, reg <span class='op'>=</span> <span class='va'>tmp</span><span class='op'>)</span>
</div><div class='output co'>#&gt; <span cl