tSigmas</span><span class="p">(:,</span><span class="nb">i</span><span class="p">)</span> <span class="p">=</span> <span class="nb">diag</span><span class="p">(</span><span class="n">cov</span><span class="p">(</span><span class="n">X</span><span class="o">&#39;</span><span class="p">));</span>
    <span class="k">else</span>
        <span class="n">initSigmas</span><span class="p">(:,</span><span class="nb">i</span><span class="p">)</span> <span class="p">=</span> <span class="nb">diag</span><span class="p