<span class="r-in"><span>pupil1 <span class="op">=</span> <span class="va">RPupil</span>, pupil2 <span class="op">=</span> <span class="va">LPupil</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">filtered_data</span> <span class="op">&lt;-</span> <span class="fu">filter_data</span><span class="op">(</span>data <span class="op">=</span> <span class="va">mean_data</span>,</span></span>
<span class="r-in"><span>pupil <span class="op">=</span> <span class="va">mean_pupil</