opics/rep">rep</a></span>(<span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/c">c</a></span>(<span class="st">"A"</span>, <span class="st">"B"</span>), <span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/c">c</a></span>(<span class="dv">3</span>, <span class="dv">3</span>)),</a>
<a class="sourceLine" id="cb24-3" data-line-number="3">  <span class="dt">date  =</span> <span class="kw"><a href="https://www.rdocumentation.org/packages/base/topics/as.Date">as.