Uses of Class
org.apache.datasketches.tuple.Sketch

Packages that use Sketch

Package	Description
org.apache.datasketches	This package is the parent package for all sketch algorithms.
org.apache.datasketches.fdt
org.apache.datasketches.tuple	The tuple package contains implementation of sketches based on the idea of theta sketches with the addition of values associated with unique keys.
org.apache.datasketches.tuple.adouble
org.apache.datasketches.tuple.aninteger
org.apache.datasketches.tuple.strings

Uses of Sketch in org.apache.datasketches

Methods in org.apache.datasketches with parameters of type Sketch

Modifier and Type	Method	Description
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getEstimateOfBoverA(Sketch<S> sketchA, Sketch sketchB)	Gets the estimate for B over A
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getEstimateOfBoverA(Sketch<S> sketchA, Sketch<S> sketchB)	Gets the estimate for B over A
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getLowerBoundForBoverA(Sketch<S> sketchA, Sketch sketchB)	Gets the approximate lower bound for B over A based on a 95% confidence interval
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getLowerBoundForBoverA(Sketch<S> sketchA, Sketch<S> sketchB)	Gets the approximate lower bound for B over A based on a 95% confidence interval
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getUpperBoundForBoverA(Sketch<S> sketchA, Sketch sketchB)	Gets the approximate upper bound for B over A based on a 95% confidence interval
static <S extends Summary> double	BoundsOnRatiosInTupleSketchedSets.getUpperBoundForBoverA(Sketch<S> sketchA, Sketch<S> sketchB)	Gets the approximate upper bound for B over A based on a 95% confidence interval

Uses of Sketch in org.apache.datasketches.fdt

Subclasses of Sketch in org.apache.datasketches.fdt

Modifier and Type	Class	Description
class	FdtSketch	A Frequent Distinct Tuples sketch.

Uses of Sketch in org.apache.datasketches.tuple

Subclasses of Sketch in org.apache.datasketches.tuple

Modifier and Type	Class	Description
class	CompactSketch<S extends Summary>	CompactSketches are never created directly.
class	UpdatableSketch<U,S extends UpdatableSummary<U>>	An extension of QuickSelectSketch<S>, which can be updated with many types of keys.

Methods in org.apache.datasketches.tuple that return Sketch

Modifier and Type	Method	Description
static <S extends Summary> Sketch<S>	Sketches.createEmptySketch()
static <S extends Summary> Sketch<S>	Sketches.heapifySketch(org.apache.datasketches.memory.Memory mem, SummaryDeserializer<S> deserializer)	Instantiate Sketch from a given Memory

Methods in org.apache.datasketches.tuple with parameters of type Sketch

Modifier and Type	Method	Description
static <S extends Summary> CompactSketch<S>	AnotB.aNotB(Sketch<S> skA, Sketch skB)	Returns the A-and-not-B set operation on a Tuple sketch and a Theta sketch.
static <S extends Summary> CompactSketch<S>	AnotB.aNotB(Sketch<S> skA, Sketch<S> skB)	Returns the A-and-not-B set operation on the two given Tuple sketches.
static <S extends Summary> boolean	JaccardSimilarity.dissimilarityTest(Sketch<S> measured, Sketch expected, S summary, SummarySetOperations<S> summarySetOps, double threshold)	Tests dissimilarity of a measured Sketch against an expected Sketch.
static <S extends Summary> boolean	JaccardSimilarity.dissimilarityTest(Sketch<S> measured, Sketch<S> expected, SummarySetOperations<S> summarySetOps, double threshold)	Tests dissimilarity of a measured Sketch against an expected Sketch.
static <S extends Summary> boolean	JaccardSimilarity.exactlyEqual(Sketch<S> sketchA, Sketch sketchB, S summary, SummarySetOperations<S> summarySetOps)	Returns true if the two given sketches have exactly the same hash values and the same theta values.
static <S extends Summary> boolean	JaccardSimilarity.exactlyEqual(Sketch<S> sketchA, Sketch<S> sketchB, SummarySetOperations<S> summarySetOps)	Returns true if the two given sketches have exactly the same hash values and the same theta values.
CompactSketch<T>	Filter.filter(Sketch<T> sketchIn)	Filters elements on the provided Sketch
void	Intersection.intersect(Sketch<S> tupleSketch)	Performs a stateful intersection of the internal set with the given tupleSketch.
CompactSketch<S>	Intersection.intersect(Sketch<S> tupleSketch, Sketch thetaSketch, S summary)	Perform a stateless intersect set operation on a tuple sketch and a theta sketch and returns the result as an unordered CompactSketch on the heap.
CompactSketch<S>	Intersection.intersect(Sketch<S> tupleSketchA, Sketch<S> tupleSketchB)	Perform a stateless intersect set operation on the two given tuple sketches and returns the result as an unordered CompactSketch on the heap.
static <S extends Summary> double[]	JaccardSimilarity.jaccard(Sketch<S> sketchA, Sketch sketchB, S summary, SummarySetOperations<S> summarySetOps)	Computes the Jaccard similarity index with upper and lower bounds.
static <S extends Summary> double[]	JaccardSimilarity.jaccard(Sketch<S> sketchA, Sketch<S> sketchB, SummarySetOperations<S> summarySetOps)	Computes the Jaccard similarity index with upper and lower bounds.
void	AnotB.notB(Sketch<S> skB)	This is part of a multistep, stateful AnotB operation and sets the given Tuple sketch as the second (or n+1th) argument B of A-AND-NOT-B.
void	AnotB.setA(Sketch<S> skA)	This is part of a multistep, stateful AnotB operation and sets the given Tuple sketch as the first argument A of A-AND-NOT-B.
static <S extends Summary> boolean	JaccardSimilarity.similarityTest(Sketch<S> measured, Sketch expected, S summary, SummarySetOperations<S> summarySetOps, double threshold)	Tests similarity of a measured Sketch against an expected Sketch.
static <S extends Summary> boolean	JaccardSimilarity.similarityTest(Sketch<S> measured, Sketch<S> expected, SummarySetOperations<S> summarySetOps, double threshold)	Tests similarity of a measured Sketch against an expected Sketch.
void	Union.union(Sketch<S> tupleSketch)	Performs a stateful union of the internal set with the given tupleSketch.
CompactSketch<S>	Union.union(Sketch<S> tupleSketch, Sketch thetaSketch, S summary)	Perform a stateless, pair-wise union operation between a tupleSketch and a thetaSketch.
CompactSketch<S>	Union.union(Sketch<S> tupleSketchA, Sketch<S> tupleSketchB)	Perform a stateless, pair-wise union operation between two tuple sketches.

Uses of Sketch in org.apache.datasketches.tuple.adouble

Subclasses of Sketch in org.apache.datasketches.tuple.adouble

Modifier and Type	Class	Description
class	DoubleSketch

Uses of Sketch in org.apache.datasketches.tuple.aninteger

Subclasses of Sketch in org.apache.datasketches.tuple.aninteger

Modifier and Type	Class	Description
class	IntegerSketch

Uses of Sketch in org.apache.datasketches.tuple.strings

Subclasses of Sketch in org.apache.datasketches.tuple.strings

Modifier and Type	Class	Description
class	ArrayOfStringsSketch