> <span class="fu">ovb_partial_r2_bound</span><span class="op">(</span>r2dxj.x <span class="op">=</span> <span class="va">r2dxj.x</span>,</span></span>
<span class="r-in"><span>                              r2yxj.dx <span class="op">=</span> <span class="va">r2yxj.dx</span>,</span></span>
<span class="r-in"><span>                              kd <span class="op">=</span> <span class="fl">1</span><span class="op">:</span><span class="fl">3</span>,</span></span>
<span class="r-in"><span>                      