A B C D F G H I M Q R S T V W

A

AbstractTDigest - Class in com.tdunning.math.stats

AbstractTDigest() - Constructor for class com.tdunning.math.stats.AbstractTDigest

add(double) - Method in class com.tdunning.math.stats.AbstractTDigest

Adds a sample to a histogram.

add(TDigest) - Method in class com.tdunning.math.stats.AbstractTDigest

add(double, int) - Method in class com.tdunning.math.stats.AVLTreeDigest

add(List<? extends TDigest>) - Method in class com.tdunning.math.stats.AVLTreeDigest

add(double, int, List<Double>) - Method in class com.tdunning.math.stats.AVLTreeDigest

add(double, int) - Method in class com.tdunning.math.stats.Centroid

add(double, int, Iterable<? extends Double>) - Method in class com.tdunning.math.stats.Centroid

add(double) - Method in class com.tdunning.math.stats.FloatHistogram

add(double, int) - Method in class com.tdunning.math.stats.MergingDigest

add(List<? extends TDigest>) - Method in class com.tdunning.math.stats.MergingDigest

add(long, long[]) - Method in class com.tdunning.math.stats.Simple64

add(double, int) - Method in class com.tdunning.math.stats.TDigest

Adds a sample to a histogram.

add(List<? extends TDigest>) - Method in class com.tdunning.math.stats.TDigest

add(double) - Method in class com.tdunning.math.stats.TDigest

Add a sample to this TDigest.

add(TDigest) - Method in class com.tdunning.math.stats.TDigest

Add all of the centroids of another TDigest to this one.

asBytes(ByteBuffer) - Method in class com.tdunning.math.stats.AVLTreeDigest

Outputs a histogram as bytes using a particularly cheesy encoding.

asBytes(ByteBuffer) - Method in class com.tdunning.math.stats.MergingDigest

asBytes(ByteBuffer) - Method in class com.tdunning.math.stats.TDigest

Serialize this TDigest into a byte buffer.

asSmallBytes(ByteBuffer) - Method in class com.tdunning.math.stats.AVLTreeDigest

asSmallBytes(ByteBuffer) - Method in class com.tdunning.math.stats.MergingDigest

asSmallBytes(ByteBuffer) - Method in class com.tdunning.math.stats.TDigest

Serialize this TDigest into a byte buffer.

AVLTreeDigest - Class in com.tdunning.math.stats

AVLTreeDigest(double) - Constructor for class com.tdunning.math.stats.AVLTreeDigest

A histogram structure that will record a sketch of a distribution.

B

byteSize() - Method in class com.tdunning.math.stats.AVLTreeDigest

Returns an upper bound on the number bytes that will be required to represent this histogram.

byteSize() - Method in class com.tdunning.math.stats.MergingDigest

byteSize() - Method in class com.tdunning.math.stats.TDigest

Returns the number of bytes required to encode this TDigest using #asBytes().

C

cdf(double) - Method in class com.tdunning.math.stats.AVLTreeDigest

cdf(double) - Method in class com.tdunning.math.stats.MergingDigest

cdf(double) - Method in class com.tdunning.math.stats.TDigest

Returns the fraction of all points added which are <= x.

Centroid - Class in com.tdunning.math.stats

A single centroid which represents a number of data points.

Centroid(double) - Constructor for class com.tdunning.math.stats.Centroid

Centroid(double, int) - Constructor for class com.tdunning.math.stats.Centroid

Centroid(double, int, int) - Constructor for class com.tdunning.math.stats.Centroid

Centroid(double, int, boolean) - Constructor for class com.tdunning.math.stats.Centroid

centroidCount() - Method in class com.tdunning.math.stats.AVLTreeDigest

centroidCount() - Method in class com.tdunning.math.stats.MergingDigest

centroidCount() - Method in class com.tdunning.math.stats.TDigest

centroids() - Method in class com.tdunning.math.stats.AVLTreeDigest

centroids() - Method in class com.tdunning.math.stats.MergingDigest

centroids() - Method in class com.tdunning.math.stats.TDigest

A Collection that lets you go through the centroids in ascending order by mean.

checkPartition(int[], double[], double, int, int, int, int) - Static method in class com.tdunning.math.stats.Sort

Check that a partition step was done correctly.

com.tdunning.math.stats - package com.tdunning.math.stats

compareTo(Centroid) - Method in class com.tdunning.math.stats.Centroid

compress() - Method in class com.tdunning.math.stats.AVLTreeDigest

compress() - Method in class com.tdunning.math.stats.MergingDigest

compress(LongBuffer, long[], int, int) - Static method in class com.tdunning.math.stats.Simple64

compress() - Method in class com.tdunning.math.stats.TDigest

Re-examines a t-digest to determine whether some centroids are redundant.

compression() - Method in class com.tdunning.math.stats.AVLTreeDigest

compression() - Method in class com.tdunning.math.stats.MergingDigest

compression() - Method in class com.tdunning.math.stats.TDigest

Returns the current compression factor.

count() - Method in class com.tdunning.math.stats.Centroid

createAvlTreeDigest(double) - Static method in class com.tdunning.math.stats.TDigest

Creates an AVLTreeDigest.

createCentroid(double, int) - Method in class com.tdunning.math.stats.AbstractTDigest

createDigest(double) - Static method in class com.tdunning.math.stats.TDigest

Creates a TDigest of whichever type is the currently recommended type.

createMergingDigest(double) - Static method in class com.tdunning.math.stats.TDigest

Creates an MergingDigest.

createWeighted(double, int, Iterable<? extends Double>) - Static method in class com.tdunning.math.stats.Centroid

D

data() - Method in class com.tdunning.math.stats.Centroid

decompress(LongBuffer, long[]) - Static method in class com.tdunning.math.stats.Simple64

F

FloatHistogram - Class in com.tdunning.math.stats

Maintains histogram buckets that are constant width in base-2 floating point representation space.

FloatHistogram(double, double) - Constructor for class com.tdunning.math.stats.FloatHistogram

FloatHistogram(double, double, double) - Constructor for class com.tdunning.math.stats.FloatHistogram

fromBytes(ByteBuffer) - Static method in class com.tdunning.math.stats.AVLTreeDigest

Reads a histogram from a byte buffer

fromBytes(ByteBuffer) - Static method in class com.tdunning.math.stats.MergingDigest

G

getBounds() - Method in class com.tdunning.math.stats.FloatHistogram

getCompressedCounts() - Method in class com.tdunning.math.stats.FloatHistogram

getCounts() - Method in class com.tdunning.math.stats.FloatHistogram

getMax() - Method in class com.tdunning.math.stats.TDigest

getMin() - Method in class com.tdunning.math.stats.TDigest

H

hashCode() - Method in class com.tdunning.math.stats.Centroid

Histogram - Class in com.tdunning.math.stats

Abstract class that describes how a Histogram should work.

Histogram(double, double, double) - Constructor for class com.tdunning.math.stats.Histogram

I

id() - Method in class com.tdunning.math.stats.Centroid

insertData(double) - Method in class com.tdunning.math.stats.Centroid

isRecording() - Method in class com.tdunning.math.stats.AbstractTDigest

isRecording() - Method in class com.tdunning.math.stats.TDigest

M

mean() - Method in class com.tdunning.math.stats.Centroid

MergingDigest - Class in com.tdunning.math.stats

Maintains a t-digest by collecting new points in a buffer that is then sorted occasionally and merged into a sorted array that contains previously computed centroids.

MergingDigest(double) - Constructor for class com.tdunning.math.stats.MergingDigest

Allocates a buffer merging t-digest.

MergingDigest(double, int) - Constructor for class com.tdunning.math.stats.MergingDigest

If you know the size of the temporary buffer for incoming points, you can use this entry point.

MergingDigest(double, int, int) - Constructor for class com.tdunning.math.stats.MergingDigest

Fully specified constructor.

MergingDigest.Encoding - Enum in com.tdunning.math.stats

Q

quantile(double) - Method in class com.tdunning.math.stats.AVLTreeDigest

quantile(double) - Method in class com.tdunning.math.stats.MergingDigest

quantile(double) - Method in class com.tdunning.math.stats.TDigest

Returns an estimate of the cutoff such that a specified fraction of the data added to this TDigest would be less than or equal to the cutoff.

R

readObject(ObjectInputStream) - Method in class com.tdunning.math.stats.FloatHistogram

recordAllData() - Method in class com.tdunning.math.stats.AbstractTDigest

Sets up so that all centroids will record all data assigned to them.

recordAllData() - Method in class com.tdunning.math.stats.AVLTreeDigest

recordAllData() - Method in class com.tdunning.math.stats.MergingDigest

Turns on internal data recording.

recordAllData() - Method in class com.tdunning.math.stats.TDigest

Tell this TDigest to record the original data as much as possible for test purposes.

S

Simple64 - Class in com.tdunning.math.stats

Very simple variable byte encoding that always uses 64bit units.

Simple64() - Constructor for class com.tdunning.math.stats.Simple64

size() - Method in class com.tdunning.math.stats.AVLTreeDigest

Returns the number of samples represented in this histogram.

size() - Method in class com.tdunning.math.stats.MergingDigest

size() - Method in class com.tdunning.math.stats.TDigest

Returns the number of points that have been added to this TDigest.

smallByteSize() - Method in class com.tdunning.math.stats.AVLTreeDigest

Returns an upper bound on the number of bytes that will be required to represent this histogram in the tighter representation.

smallByteSize() - Method in class com.tdunning.math.stats.MergingDigest

smallByteSize() - Method in class com.tdunning.math.stats.TDigest

Returns the number of bytes required to encode this TDigest using #asSmallBytes().

Sort - Class in com.tdunning.math.stats

Static sorting methods

Sort() - Constructor for class com.tdunning.math.stats.Sort

sort(int[], double[]) - Static method in class com.tdunning.math.stats.Sort

Quick sort using an index array.

sort(int[], double[], int) - Static method in class com.tdunning.math.stats.Sort

Quick sort using an index array.

T

TDigest - Class in com.tdunning.math.stats

Adaptive histogram based on something like streaming k-means crossed with Q-digest.

TDigest() - Constructor for class com.tdunning.math.stats.TDigest

toString() - Method in class com.tdunning.math.stats.Centroid

V

valueOf(String) - Static method in enum com.tdunning.math.stats.MergingDigest.Encoding

Returns the enum constant of this type with the specified name.

values() - Static method in enum com.tdunning.math.stats.MergingDigest.Encoding

Returns an array containing the constants of this enum type, in the order they are declared.

W

writeObject(ObjectOutputStream) - Method in class com.tdunning.math.stats.FloatHistogram

A B C D F G H I M Q R S T V W