Indices for ordinary 10-fold CV
<1, 1, 3, 8, 8, 3, 2, 7, 5, 0, 1, 5, 2, 9, 4, 7, 4, 9, 3, 6, 0, 2, 0, 6>
Indices for 5 folds on 10 instances
<3, 0, 1, 0, 3, 2, 4, 4, 1, 2>
