pan>  $ lphysic : num  5.02 5.06 4.93 4.98 5.25 ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ clphysic: num  NA 0.0453 NA 0.0564 NA ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ clowbrth: num  NA 0.4 NA 0 NA ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ cinfmort: num  NA -1.4 NA 0.1 NA ...</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  $ afdcpay : int  114 115 567 651 268 268 185 190 557 637 ...</span>
<span class="r-out co