Module split 

Split strategies for discovery / estimation.

SPDX-License-Identifier: MIT OR Apache-2.0

Structs

BlockedTemporalSplit

Blocked temporal split: contiguous time blocks assigned to train / test.

ClusterSplit

Cluster split: same mechanics as grouped, distinct type for cluster ids.

DiscoveryEstimationSplit

Discovery / estimation split with a temporal gap.

EnvHoldoutSplit

Environment holdout: discovery vs estimation environment index sets (no data copy).

GroupedSplit

Grouped split: entire groups assigned to train or test (no leakage).

OrderedFrac

Newtype so f64 fraction can live on an Eq struct via bit pattern.

RandomIidSplit

Random IID train/test split (seeded; metadata only).

RegimeHoldoutSplit

Regime holdout: discovery vs estimation regime id sets (no data copy).

RollingOriginSplit

Rolling-origin (expanding window) temporal folds.

RowSplit

Train / test row-index partition (metadata only — no data copy).

TemporalFold

One rolling-origin fold.

TimeRange

Half-open index range [start, end).

Enums

TemporalRandomPolicy

Whether random row splits are allowed on temporal / panel / event data.

Functions

ensure_random_allowed_on_temporal

Guard used by planners before applying RandomIidSplit to temporal data.