><span class="o">=</span><span class="w"> </span><span class="nb">sum</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="p">(</span><span class="n">X</span><span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="o">-</span><span class="n">xmean</span><span class="p">)</span><span class="o">**</span><span class="mi">2</span>
<span class="w">         </span><span class="k">ENDDO</span>
<span class="k">         </span><span class="n">var</spa