/span>.
<span class="nv">N</span><span class="w">        </span><span class="nv">The</span><span class="w"> </span><span class="nv">integer</span><span class="w"> </span><span class="nv">number</span><span class="w"> </span><span class="nv">of</span><span class="w"> </span><span class="nv">observations</span><span class="w"> </span><span class="nv">in</span><span class="w"> </span><span class="nv">the</span><span class="w"> </span><span class="nv">vector</span><span class="w"> </span><span class="nv">x</spa