"op">(</span> <span class="va">item_1PL</span>,  <span class="va">item_2PL</span> <span class="op">)</span></span>
<span></span>
<span><span class="co">#-- create parameter table</span></span>
<span><span class="va">itemtype</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/rep.html" class="external-link">rep</a></span><span class="op">(</span> <span class="st">"1PL"</span>, <span class="fl">12</span> <span class="op">)</span></span>
<span><span class="va">partable</span>