"><pre class="sourceCode r"><code><span class="r-in"><span></span></span>
<span class="r-in"><span><span class="fu">ici</span><span class="op">(</span><span class="va">nhanes</span><span class="op">)</span> <span class="co"># indicator for 12 rows with incomplete cases</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [1]  TRUE FALSE  TRUE  TRUE FALSE  TRUE FALSE FALSE FALSE  TRUE  TRUE  TRUE</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [13] FALSE FALSE  TRUE  TRU