>
<span class='co'># with each value</span>
<span class='no'>spList</span> <span class='kw'>&lt;-</span> <span class='fu'><a href='https://rdrr.io/r/base/unique.html'>unique</a></span>(<span class='no'>iris</span>$<span class='no'>Species</span>)
<span class='fu'>heddle</span>(<span class='no'>spList</span>, <span class='st'>"SPECIES CODE GWAR "</span>, <span class='st'>"GWAR"</span>)</div><div class='output co'>#&gt; [1] "SPECIES CODE setosa "     "SPECIES CODE versicolor "
#&gt; [3] "SPECIES CODE virginic