iation.
device=cpu
</code></pre></div>
<h2 id="r_3">R</h2>
<div class="highlight"><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a>ml.MC1 &lt;- mlogit(choice ~ cost + freq + ovt | income | ivt, MC, reflevel=&#39;air&#39;)
<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a>summary(ml.MC1)
</code></pre></div>
<p>R output:
<div class="highlight"><pre><span></span><code><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__cod