rate</span>
0016 <span class="comment">%</span>
0017 <span class="comment">% The results are returned in a structure 'res' with fields</span>
0018 <span class="comment">%</span>
0019 <span class="comment">%   res.mean_total               Mean value for all samples (total mean)</span>
0020 <span class="comment">%   res.mean_a                   Mean value for 1st variant</span>
0021 <span class="comment">%   res.mean_b                   Mean value for 2nd variant</span>
0022 <span class="comment">%   res.mean