object VowpalWabbitUtil
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- def addFeaturesToExample(featureColIndices: Seq[NamespaceInfo], row: Row, ex: VowpalWabbitExample): Unit
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- def generateNamespaceInfo(schema: StructType, hashSeed: Int, col: String): NamespaceInfo
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def
generateNamespaceInfos(schema: StructType, hashSeed: Int, cols: Seq[String]): Array[NamespaceInfo]
Generate namespace info (hash, feature group, field index) for supplied columns.
Generate namespace info (hash, feature group, field index) for supplied columns.
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data frame schema to lookup column indices.
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- def prepareMultilineExample[T](row: Row, actionNamespaceInfos: Array[NamespaceInfo], sharedNamespaceInfos: Array[NamespaceInfo], exampleStack: ExampleStack, fun: (Array[VowpalWabbitExample]) ⇒ T): T
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