an class="r-out co"><span class="r-pr">#&gt;</span> 5     &lt;NA&gt;     USA         NA    0.7328820          NA</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 6     &lt;NA&gt;     IND         NA    0.8746007          NA</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 7        3    &lt;NA&gt;         NA           NA 0.497777389</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 8        4    &lt;NA&gt;         NA           NA 0.289767245</span>
<span class="r-in"><spa