dataforge-data/space.kscience.dataforge.actions/ReduceGroupBuilder

ReduceGroupBuilder

class ReduceGroupBuilder<T : Any, R : Any>(val actionMeta: Meta, outputType: KType)

Constructors

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constructor(actionMeta: Meta, outputType: KType)

Properties

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val actionMeta: Meta

Functions

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fun byValue(tag: String, defaultTag: String = "@default", action: JoinGroup<T, R>.() -> Unit)

introduce grouping by meta value

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fun group(groupName: String, predicate: (Name, Meta) -> Boolean, action: JoinGroup<T, R>.() -> Unit)
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fun result(resultName: String, f: suspend ActionEnv.(Map<Name, ValueWithMeta<T>>) -> R)

Apply transformation to the whole node