gs</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4                 &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 6                 &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 7                 &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 9                 &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 10                &lt;NA&gt;</span>
<span class="r-out co"><span class="r-pr">#&gt;