2</span><span class="op">[</span>, <span class="st">"solution_1"</span><span class="op">]</span><span class="op">)</span></span></span>
<span class="r-plt img"><img src="eval_cost_summary-2.png" alt="" width="700" height="433"></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># print solution</span></span></span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/print.html" class="external-link">print</a></span><span class="op">(</span><span cl