span><span class="va">iris</span> <span class="op"><a href="https://magrittr.tidyverse.org/reference/pipe.html" class="external-link">%&gt;%</a></span> <span class="fu">dummy_dt</span><span class="op">(</span><span class="va">Species</span>,longname <span class="op">=</span> <span class="cn">FALSE</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>      Sepal.Length Sepal.Width Petal.Length Petal.Width   Species setosa</span>
<span class="r-out co"><span cl