>
<span>               <span class="fl">1</span>, <span class="fl">4</span>, <span class="fl">3</span>, <span class="fl">2</span>,</span>
<span>               <span class="fl">1</span>, <span class="fl">4</span>, <span class="fl">2</span>, <span class="fl">3</span>,</span>
<span>               <span class="fl">1</span>, <span class="fl">4</span>, <span class="fl">2</span>, <span class="fl">3</span><span class="op">)</span>, nrow <span class="op">=</span> <span class="fl">4</span>, byrow <span class="op">=</