ss="nt">rank</span><span class="w"> </span><span class="nt">the</span><span class="w"> </span><span class="nt">numeric</span><span class="w"> </span><span class="nt">data</span><span class="w"></span>
<span class="w">   </span><span class="nt">call</span><span class="w"> </span><span class="nt">rank</span><span class="o">(</span><span class="nt">dd</span><span class="o">,</span><span class="nt">indx</span><span class="o">)</span><span class="w"></span>
<span class="w">   </span><span class="o">!</span><span