kumulant
kumulant/com.eignex.kumulant.stat.regression.tree/RegressionLeafNode

RegressionLeafNode

sealed class RegressionLeafNode : RegressionNode(source)

Leaf node; terminus of the tree walk for a given row, and the only node type that owns a live accumulator.

Inheritors

Properties

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abstract val arm: SeriesStat<WeightedVarianceResult>

The leaf's weighted-variance accumulator.

Functions

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override fun findLeaf(row: VectorView): RegressionLeafNode

Walk to the leaf this row resolves to.

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fun RegressionNode.snapshot(): TreeNodeResult

Freeze a live tree node into an immutable snapshot. Internal split aggregates are derived from the snapshotted children so the wire format stays stable even though live splits hold no arm.

arm

abstract val arm: SeriesStat<WeightedVarianceResult>(source)

The leaf's weighted-variance accumulator.

findLeaf

override fun findLeaf(row: VectorView): RegressionLeafNode(source)

Walk to the leaf this row resolves to.