)</span><span class="op">)</span></span>
<span><span class="va">expt_df</span><span class="op">$</span><span class="va">Sample_ID</span> <span class="op">&lt;-</span> <span class="fu"><a href="reference/pasteByRow.html">pasteByRow</a></span><span class="op">(</span><span class="va">expt_df</span><span class="op">[</span>, <span class="fl">2</span><span class="op">:</span><span class="fl">4</span><span class="op">]</span><span class="op">)</span></span>
<span></span>
<span><span class="co"># define colors</s