Struct GroupKFold 

pub struct GroupKFold { /* private fields */ }

Group K-Fold Cross-Validation

Ensures that samples from the same group are not in both train and test sets. Useful for preventing data leakage in scenarios like patient data, user data, etc.

Implementations

impl GroupKFold

pub fn new(n_splits: usize) -> UtilsResult<Self>

Create a new group k-fold splitter

pub fn split(&self, groups: &[usize]) -> UtilsResult<Vec<CVSplit>>

Generate group-based k-fold splits

Arguments

• groups - Group identifier for each sample

Returns

Vector of CVSplit structures ensuring group separation

Trait Implementations

impl Clone for GroupKFold

fn clone(&self) -> GroupKFold

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for GroupKFold

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.