"r-in"><span><span class="va">id</span> <span class="op">&lt;-</span> <span class="fl">1</span><span class="op">:</span><span class="fl">25</span></span></span>
<span class="r-in"><span><span class="fu">nn</span><span class="op">(</span><span class="va">x</span>, <span class="va">y</span>, <span class="va">id</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [1] 15 19 23  6 10  4  8  7 21 17 23 11 20 24  1  4 10 20  2 18 22 21  3 14 19</span>
<span class="