t necessary because</span></span></span>
<span class="r-in"><span><span class="co"># it is "inherited" from the parent)</span></span></span>
<span class="r-in"><span><span class="va">pop2</span> <span class="op">&lt;-</span> <span class="fu"><a href="population.html">population</a></span><span class="op">(</span><span class="st">"pop2"</span>, N <span class="op">=</span> <span class="fl">100</span>, time <span class="op">=</span> <span class="fl">50</span>, parent <span class="op">=</span> <span class="va">