iv</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  1 ~~ 2  2.917381   1 8.764849    20 0.122711 2.082143</span>
<span class="r-in"><span><span class="kw">if</span> <span class="op">(</span><span class="cn">FALSE</span><span class="op">)</span> <span class="op">{</span> <span class="co"># \dontrun{</span></span></span>
<span class="r-in"><span><span class="co"># Compare two logistic regression models</span></span></span>
<span class="r-in"><span><span class="va">imp</span> <span class="op">&lt