s="op">)</span></span></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Use the t-value of female in the *treatment* regression</span></span></span>
<span class="r-in"><span><span class="co"># to compute the partial R2 of female with the treatment</span></span></span>
<span class="r-in"><span><span class="va">r2dxj.x</span> <span class="op">&lt;-</span> <span class="fu"><a href="partial_r2.html">partial_r2</a></span><span class="op">(</span>t_statistic <span class="