Package com.tdunning.math.stats

Class AbstractTDigest

java.lang.Object
com.tdunning.math.stats.TDigest
com.tdunning.math.stats.AbstractTDigest
Direct Known Subclasses:
ArrayDigest, AVLTreeDigest, TreeDigest
public abstract class AbstractTDigest extends TDigest

  • Field Details

    • gen

      protected Random gen

    • recordAllData

      protected boolean recordAllData

  • Constructor Details

    • AbstractTDigest

      public AbstractTDigest()

  • Method Details

    • interpolate

      public static double interpolate(double x, double x0, double x1)

    • encode

      public static void encode(ByteBuffer buf, int n)

    • decode

      public static int decode(ByteBuffer buf)

    • merge

      protected static TDigest merge(Iterable<TDigest> subData, Random gen, TDigest r)

    • compress

      public abstract void compress(GroupTree other)

    • recordAllData

      public TDigest recordAllData()
      Sets up so that all centroids will record all data assigned to them. For testing only, really.
      Specified by:
      recordAllData in class TDigest
      Returns:
      This TDigest so that configurations can be done in fluent style.

    • isRecording

      public boolean isRecording()
      Specified by:
      isRecording in class TDigest

    • add

      public void add(double x)
      Adds a sample to a histogram.
      Specified by:
      add in class TDigest
      Parameters:
      x - The value to add.

    • add

      public void add(TDigest other)
      Description copied from class: TDigest
      Add all of the centroids of another TDigest to this one.
      Specified by:
      add in class TDigest
      Parameters:
      other - The other TDigest

    • createCentroid

      protected Centroid createCentroid(double mean, int id)