Package com.tdunning.math.stats
Class AbstractTDigest
- java.lang.Object
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- com.tdunning.math.stats.TDigest
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- com.tdunning.math.stats.AbstractTDigest
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- Direct Known Subclasses:
ArrayDigest
,AVLTreeDigest
,TreeDigest
public abstract class AbstractTDigest extends TDigest
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Field Summary
Fields Modifier and Type Field Description protected java.util.Random
gen
protected boolean
recordAllData
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Constructor Summary
Constructors Constructor Description AbstractTDigest()
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description void
add(double x)
Adds a sample to a histogram.void
add(TDigest other)
Add all of the centroids of another TDigest to this one.abstract void
compress(GroupTree other)
protected Centroid
createCentroid(double mean, int id)
static int
decode(java.nio.ByteBuffer buf)
static void
encode(java.nio.ByteBuffer buf, int n)
static double
interpolate(double x, double x0, double x1)
boolean
isRecording()
protected static TDigest
merge(java.lang.Iterable<TDigest> subData, java.util.Random gen, TDigest r)
TDigest
recordAllData()
Sets up so that all centroids will record all data assigned to them.-
Methods inherited from class com.tdunning.math.stats.TDigest
add, asBytes, asSmallBytes, byteSize, cdf, centroidCount, centroids, checkValue, compress, compression, createArrayDigest, createArrayDigest, createTreeDigest, quantile, size, smallByteSize
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Method Detail
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interpolate
public static double interpolate(double x, double x0, double x1)
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encode
public static void encode(java.nio.ByteBuffer buf, int n)
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decode
public static int decode(java.nio.ByteBuffer buf)
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merge
protected static TDigest merge(java.lang.Iterable<TDigest> subData, java.util.Random gen, TDigest r)
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compress
public abstract void compress(GroupTree other)
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recordAllData
public TDigest recordAllData()
Sets up so that all centroids will record all data assigned to them. For testing only, really.- Specified by:
recordAllData
in classTDigest
- Returns:
- This TDigest so that configurations can be done in fluent style.
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isRecording
public boolean isRecording()
- Specified by:
isRecording
in classTDigest
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add
public void add(double x)
Adds a sample to a histogram.
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add
public void add(TDigest other)
Description copied from class:TDigest
Add all of the centroids of another TDigest to this one.
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createCentroid
protected Centroid createCentroid(double mean, int id)
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