u pgm phs </span></span>
<span><span class="co">##   1   1   1   1   1   1   1   1   1   1 </span></span>
<span><span class="co">## attr(,"add_ind")</span></span>
<span><span class="co">## [1] TRUE</span></span>
<span><span class="co">## attr(,"h2")</span></span>
<span><span class="co">## [1] 0.5</span></span></code></pre>
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