"fl">6</span>,<span class="fl">1</span><span class="op">]</span> <span class="op">&lt;-</span> <span class="fl">1</span></span>
<span><span class="va">Q</span><span class="op">[</span><span class="fl">7</span><span class="op">:</span><span class="fl">12</span>,<span class="fl">2</span><span class="op">]</span> <span class="op">&lt;-</span> <span class="fl">1</span></span>
<span><span class="fu"><a href="https://rdrr.io/r/base/colnames.html" class="external-link">rownames</a></span><span class="op">(</span><