Uses of Class
com.yahoo.sketches.theta.Sketch

Packages that use Sketch

Package	Description
com.yahoo.sketches	This package is the parent package for all sketch algorithms.
com.yahoo.sketches.theta	The theta package contains all the sketch classes that are members of the Theta Sketch Framework.

Uses of Sketch in com.yahoo.sketches

Methods in com.yahoo.sketches with parameters of type Sketch

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

Uses of Sketch in com.yahoo.sketches.theta

Subclasses of Sketch in com.yahoo.sketches.theta

Modifier and Type	Class and Description
class	CompactSketch The parent class of all the CompactSketches.
class	UpdateSketch The parent class for the Update Sketch families, such as QuickSelect and Alpha.

Methods in com.yahoo.sketches.theta that return Sketch

Modifier and Type	Method and Description
static Sketch	Sketch.heapify(Memory srcMem) Heapify takes the sketch image in Memory and instantiates an on-heap Sketch using the Default Update Seed.
static Sketch	Sketch.heapify(Memory srcMem, long seed) Heapify takes the sketch image in Memory and instantiates an on-heap Sketch using the given seed.
static Sketch	Sketches.heapifySketch(Memory srcMem) Ref: Sketch.heapify(Memory)
static Sketch	Sketches.heapifySketch(Memory srcMem, long seed) Ref: Sketch.heapify(Memory, long)
static Sketch	Sketch.wrap(Memory srcMem) Wrap takes the sketch image in Memory and refers to it directly.
static Sketch	Sketch.wrap(Memory srcMem, long seed) Wrap takes the sketch image in Memory and refers to it directly.
static Sketch	Sketches.wrapSketch(Memory srcMem) Ref: Sketch.heapify(Memory)
static Sketch	Sketches.wrapSketch(Memory srcMem, long seed) Ref: Sketch.wrap(Memory, long)

Methods in com.yahoo.sketches.theta with parameters of type Sketch

Modifier and Type	Method and Description
static boolean	JaccardSimilarity.dissimilarityTest(Sketch measured, Sketch expected, double threshold) Tests dissimilarity of a measured Sketch against an expected Sketch.
static boolean	JaccardSimilarity.exactlyEqual(Sketch sketchA, Sketch sketchB) Returns true if the two given sketches have exactly the same hash values and the same theta values.
static double[]	JaccardSimilarity.jaccard(Sketch sketchA, Sketch sketchB) Computes the Jaccard similarity ratio with upper and lower bounds.
static boolean	JaccardSimilarity.similarityTest(Sketch measured, Sketch expected, double threshold) Tests similarity of a measured Sketch against an expected Sketch.
void	Union.update(Sketch sketchIn) Union the given on-heap sketch.
void	Intersection.update(Sketch sketchIn) Intersect the given sketch with the internal state.
void	AnotB.update(Sketch a, Sketch b) Perform A-and-not-B set operation on the two given sketches.