src/main/java/org/apache/datasketches/pig/tuple/DataToArrayOfDoublesSketch.java [68:103]:
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  @Override
  public String getInitial() {
    return Initial.class.getName();
  }

  @Override
  public String getIntermed() {
    return IntermediateFinal.class.getName();
  }

  @Override
  public String getFinal() {
    return IntermediateFinal.class.getName();
  }

  public static class Initial extends AlgebraicInitial {
    /**
     * Constructor for the initial pass of an Algebraic function.
     * Using default parameters.
     */
    public Initial() {}

    /**
     * Constructor for the initial pass of an Algebraic function. This will be passed the same
     * constructor arguments as the original UDF.
     * @param numValues Number of double values to keep for each key
     */
    public Initial(final String numValues) {}

    /**
     * Constructor for the initial pass of an Algebraic function. This will be passed the same
     * constructor arguments as the original UDF.
     * @param sketchSize String representation of sketch size
     * @param numValues Number of double values to keep for each key
     */
    public Initial(final String sketchSize, final String numValues) {}
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src/main/java/org/apache/datasketches/pig/tuple/UnionArrayOfDoublesSketch.java [54:89]:
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  @Override
  public String getInitial() {
    return Initial.class.getName();
  }

  @Override
  public String getIntermed() {
    return IntermediateFinal.class.getName();
  }

  @Override
  public String getFinal() {
    return IntermediateFinal.class.getName();
  }

  public static class Initial extends AlgebraicInitial {

    /**
     * Constructor for the initial pass of an Algebraic function using default parameters.
     */
    public Initial() {}

    /**
     * Constructor for the initial pass of an Algebraic function. This will be passed the same
     * constructor arguments as the original UDF.
     * @param numValues String representation of number of values per key
     */
    public Initial(final String numValues) {}

    /**
     * Constructor for the initial pass of an Algebraic function. This will be passed the same
     * constructor arguments as the original UDF.
     * @param sketchSize String representation of sketch size
     * @param numValues String representation of number of values per key
     */
    public Initial(final String sketchSize, final String numValues) {}
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