>orig <span class="op">=</span> <span class="va">r</span>, dest <span class="op">=</span> <span class="va">r</span><span class="op">)</span>, byrow <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">m</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>     dest</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> orig  A   B  C  D</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>