Package org.apache.datasketches.theta

The theta package contains all the sketch classes that are members of the Theta Sketch Framework. The basic sketching functionality in this package is also accessible from Hadoop Pig UDFs found in the sketches-pig repository, and from Hadoop Hive UADFs and UDFs found in the sketches-hive repository.

Author:

Lee Rhodes

Interface Summary

Interface	Description
HashIterator	This is used to iterate over the retained hash values of the Theta sketch.

Class Summary

Class	Description
AnotB	Computes a set difference, A-AND-NOT-B, of two theta sketches.
CompactSketch	The parent class of all the CompactSketches.
Intersection	The API for intersection operations
JaccardSimilarity	Jaccard similarity of two Theta Sketches.
PairwiseSetOperations	Deprecated. v2.0.0.
SetOperation	The parent API for all Set Operations
SetOperationBuilder	For building a new SetOperation.
Sketch	The top-level class for all sketches.
Sketches	This class brings together the common sketch and set operation creation methods and the public static methods into one place.
Union	Compute the union of two or more theta sketches.
UpdateSketch	The parent class for the Update Sketch families, such as QuickSelect and Alpha.
UpdateSketchBuilder	For building a new UpdateSketch.

Enum Summary

Enum	Description
UpdateReturnState	See Update Return State