re complex than the previous case(s) as we now have <span class="math inline">\(r\)</span> repeats for every fold <span class="math inline">\(k\)</span>. Bouckaert and Frank (2004) present a
nice representation of the corrected test for this case which we
implement as <code>repkfold_ttest</code> in <code>correctR</code>:</p>
<p><span class="math display">\[
t = \frac{\frac{1}{k \cdot r} \sum_{i=1}^{k} \sum_{j=1}^{r}
x_{ij}}{\sqrt{(\frac{1}{k \cdot r} + \frac{n_{2}}{n_{1}})\sigma^{2}}}
\]</span></p>
</div>
<