Module cv 

Cross-validation utilities and unified CV framework.

This module provides:

• Shared fold assignment utilities used across all CV functions
• cv_fdata: Generic k-fold + repeated CV framework (R’s cv.fdata)

Structs

CvFdataResult

Result of unified cross-validation.

Enums

CvMetrics

Cross-validation metrics.

CvType

Type of cross-validation task.

Functions

create_folds

Assign observations to folds (deterministic given seed).

create_stratified_folds

Assign observations to stratified folds (classification).

cv_fdata

Generic k-fold + repeated cross-validation framework (R’s cv.fdata).

fold_indices

Split indices into train and test sets for a given fold.

subset_rows

Extract a sub-matrix from an FdMatrix by selecting specific row indices.

subset_vec

Extract elements from a slice by indices.