"external-link">c</a></span><span class="op">(</span><span class="fl">1</span>,<span class="fl">2</span><span class="op">)</span>, ncol <span class="op">=</span> <span class="fl">2</span><span class="op">)</span> <span class="op">)</span></span>
<span><span class="co">#       [,1] [,2]</span></span>
<span><span class="co">#  [1,]    1    2</span></span>
<span><span class="co">#  attr(,"class")</span></span>
<span><span class="co">#  [1] "XY"    "POINT" "sfg"</span></span>
<span><span class="co">## single-ro