iv class="sourceCode" id="cb3"><pre class="downlit sourceCode r">
<code class="sourceCode R"><span class="va">m2</span> <span class="op">&lt;-</span> <span class="fu"><a href="../reference/countreg.html">countreg</a></span><span class="op">(</span><span class="va">dv</span> <span class="op">~</span> <span class="va">eta1</span>, 
                       lv <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/list.html">list</a></span><span class="op">(</span>eta1 <span class="op">=</spa