op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/utils/head.html" class="external-link">head</a></span><span class="op">(</span><span class="va">res</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>        Genes CT_1 CT_2 CT_3 LT20_1 LT20_2 LT20_3 LT15_1 LT15_2 LT15_3 LT12_1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 1 14-3-3ZETA   NA   NA   NA     NA     NA     NA     NA     NA     NA    