row =</span> <span class="dv">2</span>), <span class="dt">.e =</span> <span class="op">~</span><span class="st"> </span><span class="kw">print</span>(<span class="st">"error"</span>))</a>
<a class="sourceLine" id="cb11-2" title="2"><span class="co">#      [,1] [,2]</span></a>
<a class="sourceLine" id="cb11-3" title="3"><span class="co"># [1,]    1    3</span></a>
<a class="sourceLine" id="cb11-4" title="4"><span class="co"># [2,]    2    1</span></a>
<a class="sourceLine" id="cb11-5" title="5"><span class="