<span>  weight <span class="op">=</span> <span class="st">"wgt"</span>, xcoord <span class="op">=</span> <span class="st">"xcoord"</span>, ycoord <span class="op">=</span> <span class="st">"ycoord"</span>,</span></span>
<span class="r-in"><span>  stratumID <span class="op">=</span> <span class="st">"stratum"</span>, popsize <span class="op">=</span> <span class="va">mypopsize</span>, statistics <span class="op">=</span> <span class="st">"Mean"</span></span></span>
<span class="r-in"><span><span class="op">)