span>, <span class="fl">0</span>,</span></span>
<span class="r-in"><span>  <span class="fl">1</span>, <span class="fl">1</span>, <span class="fl">1</span>, <span class="fl">1</span>, <span class="op">-</span><span class="fl">4</span><span class="op">)</span>, <span class="fl">5</span>, <span class="fl">4</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/colnames.html" class="external-link">rownames</a></span><span class="op">(</span><span