&gt; 2 51840   1     25   13.3   89.1      NA  0.3444667 0.17267724
#&gt; 3 51962   2      2    4.5   56.6    38.8 -0.6132758         NA
#&gt; 4 52066   2      8    9.5   72.5      NA  1.4358921         NA
#&gt; 5 52089   1     32   14.2   93.6      NA  0.2803484 0.02069642
#&gt; 6 52300   1      2    6.9   63.4    41.9  2.2748948         NA</div><div class='input'>
</div></pre>
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