link">nextn</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/Round.html" class="external-link">floor</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/nrow.html" class="external-link">NROW</a></span><span class="op">(</span><span class="va">y</span><span class="op">)</span><span class="op">/</span><span class="fl">4</span><span class="op">)</span>, factors <span class="op">=</span> <span class="fl">2</span><span class="op">)</span>,</span>