object FeatureRotator extends Serializable

Utilities to compute and apply rotations.

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  4. def applyOneRotation(input: Vector[Any], featuresToRotate: IndexedSeq[Int], trans: DenseMatrix[Double]): Vector[Any]

    Apply rotation to a vector.

    Apply rotation to a vector.

    input

    vector to rotate

    featuresToRotate

    vector of feature indices included in rotation

    trans

    linear transformation matrix to apply

    returns

    rotated vectors

  5. def applyRotation(input: Seq[Vector[Any]], featuresToRotate: IndexedSeq[Int], trans: DenseMatrix[Double]): Seq[Vector[Any]]

    Apply rotation to a sequence of vectors.

    Apply rotation to a sequence of vectors.

    input

    sequence of vectors to rotate

    featuresToRotate

    vector of feature indices included in rotation

    trans

    linear transformation matrix to apply

    returns

    sequence of rotated vectors

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  11. final def getClass(): Class[_ <: AnyRef]
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  12. def getDoubleFeatures(rep: Vector[Any]): IndexedSeq[Int]

    Get list of feature indices that make sense to rotate.

    Get list of feature indices that make sense to rotate.

    rep

    representative vector of features

    returns

    list of feature indices that are doubles

  13. def getRandomRotation(dimension: Int): DenseMatrix[Double]

    Draw a random unitary matrix from the uniform (Haar) measure.

    Draw a random unitary matrix from the uniform (Haar) measure.

    dimension

    for which to get a rotator

    returns

    unitary matrix

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