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Showing content from http://spark.apache.org/docs/latest/api/java/org/apache/spark/mllib/feature/PCAModel.html below:

PCAModel (Spark 4.0.0 JavaDoc)

org.apache.spark.mllib.feature.PCAModel

All Implemented Interfaces:

Serializable, VectorTransformer

Model fitted by

that can project vectors to a low-dimensional space using PCA.

param: k number of principal components. param: pc a principal components Matrix. Each column is one principal component.

See Also:

• Serialized Form

• Method Summary

  int

  Transform a vector by computed Principal Components.

• Method Details
  • explainedVariance
  • k

    public int k()

  • pc
  • transform

    Specified by:

    transform in interface VectorTransformer

    Parameters:

    vector - vector to be transformed. Vector must be the same length as the source vectors given to PCA.fit().

    Returns:

    transformed vector. Vector will be of length k.

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