>(</span><span class="va">cchs2013_2014_p</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 'data.frame':	200 obs. of  1003 variables:</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ VERDATE : int  20150427 20150427 20150427 20150427 20150427 20150427 20150427 20150427 20150427 20150427 ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ ADM_RNO : int  1 2 3 4 5 6 7 8 9 10 ...</span>
<span class="r-out co"><span class="r-pr