lit">
<span class="va">raw_sims</span> <span class="op">&lt;-</span> <span class="fu">cross_df</span><span class="op">(</span><span class="fu"><a href="https://rdrr.io/r/base/list.html">list</a></span><span class="op">(</span>timesteps <span class="op">=</span> <span class="fl">20</span>, phi <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/c.html">c</a></span><span class="op">(</span><span class="op">-</span><span class="fl">0.5</span>, <span class="fl">0</span>, <span class="fl">