">(</span><span class="va">pop1</span>, start <span class="op">=</span> <span class="fl">100</span>, end <span class="op">=</span> <span class="fl">200</span>, snapshots <span class="op">=</span> <span class="fl">6</span>,</span></span>
<span class="r-in"><span>                   trajectory <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html" class="external-link">list</a></span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/c.html" class="external