an class="ot">&lt;-</span> <span class="fu">c</span>(<span class="dv">10</span>,<span class="dv">10</span>,<span class="dv">10</span>)</span>
<span id="cb1-36"><a href="#cb1-36" aria-hidden="true" tabindex="-1"></a><span class="fu">names</span>(initial_abundances) <span class="ot">&lt;-</span> three_sp</span>
<span id="cb1-37"><a href="#cb1-37" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb1-38"><a href="#cb1-38" aria-hidden="true" tabindex="-1"></a><span class="co"># standard initial values,</sp