ss="r-out co"><span class="r-pr">#&gt;</span> [11] "Nigeria"    "Nigeria"    "Nigeria"    "Nigeria"    "Chad"      </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [16] "Chad"       "Chad"       "Chad"       "Chad"       "Chad"      </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [21] "Chad"       "Chad"       "Libya"      "Libya"      "Libya"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [26] "Libya"      "Egypt"      "Egypt"      "Egypt"      "Egypt"     <