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c

com.spotify.featran

FeatureExtractor

class FeatureExtractor[M[_], T] extends Serializable

Encapsulate features extracted from a FeatureSpec.

M

input collection type, e.g. Array, List

T

input record type to extract features from

Source
FeatureExtractor.scala
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  1. final def !=(arg0: Any): Boolean
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  8. lazy val featureNames: M[Seq[String]]

    Names of the extracted features, in the same order as values in featureValues.

    Names of the extracted features, in the same order as values in featureValues.

    Annotations
    @transient()
  9. def featureResults[F](implicit arg0: FeatureBuilder[F], arg1: ClassTag[F]): M[FeatureResult[F, T]]

    Values of the extracted features, in the same order as names in featureNames with rejections keyed on feature name and the original input record.

    Values of the extracted features, in the same order as names in featureNames with rejections keyed on feature name and the original input record.

    F

    output data type, e.g. Array[Float], Array[Double], DenseVector[Float], DenseVector[Double]

  10. lazy val featureSettings: M[String]

    JSON settings of the FeatureSpec and aggregated feature summary.

    JSON settings of the FeatureSpec and aggregated feature summary.

    This can be used with FeatureSpec.extractWithSettings[F]* to bypass the reduce step when extracting new records of the same type.

    Annotations
    @transient()
  11. def featureValues[F](implicit arg0: FeatureBuilder[F], arg1: ClassTag[F]): M[F]

    Values of the extracted features, in the same order as names in featureNames.

    Values of the extracted features, in the same order as names in featureNames.

    F

    output data type, e.g. Array[Float], Array[Double], DenseVector[Float], DenseVector[Double]

  12. def finalize(): Unit
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