pub type IndexSplit = (Vec<usize>, Vec<usize>);Expand description
A pair of disjoint row-index lists that a splitting function produces.
The first list is the training side, the second is the held-out side (the test
set for train_test_split / stratified_split, the validation fold for
k_fold_indices). Use them to index into your arrays with ndarray’s
select(Axis(0), &indices).