Package org.terracotta.statistics.derived.histogram

Class StripedHistogram

java.lang.Object

org.terracotta.statistics.derived.histogram.Striped<BarSplittingBiasedHistogram>

org.terracotta.statistics.derived.histogram.StripedHistogram

All Implemented Interfaces:

Histogram

public class StripedHistogram
extends Striped<BarSplittingBiasedHistogram>
implements Histogram

Nested Class Summary

Nested classes/interfaces inherited from class org.terracotta.statistics.derived.histogram.Striped

Striped.Cell<T>, Striped.CellSpliterator<T>

Nested classes/interfaces inherited from interface org.terracotta.statistics.derived.histogram.Histogram

Histogram.Bucket

Constructor Summary

Constructors

Constructor	Description
StripedHistogram(double maxCoefficient, double phi, int expansionFactor, int bucketCount, double barEpsilon, long window)
StripedHistogram(double phi, int bucketCount, long window)
StripedHistogram(int bucketCount, long window)

Method Summary

Modifier and Type	Method	Description
private double[]	evaluateQuantileFromMax(double quantile)
private double[]	evaluateQuantileFromMin(double quantile)
void	event(double value, long time)
void	expire(long time)
private static List<double[]>	flatten(double[] a, double[] b)
List<Histogram.Bucket>	getBuckets()	Returns the histograms buckets
double[]	getQuantileBounds(double quantile)	Returns the bounds [minimum, maximum) on the given quantile.
(package private) static void	mergeBars(List<double[]> bars)
long	size()

Methods inherited from class org.terracotta.statistics.derived.histogram.Striped

advanceProbe, process, stream, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.terracotta.statistics.derived.histogram.Histogram

getMaximum, getMinimum

Constructor Details

StripedHistogram

public StripedHistogram(double maxCoefficient,
 double phi,
 int expansionFactor,
 int bucketCount,
 double barEpsilon,
 long window)

StripedHistogram

public StripedHistogram(int bucketCount,
 long window)

StripedHistogram

public StripedHistogram(double phi,
 int bucketCount,
 long window)

Method Details

getBuckets

public List<Histogram.Bucket> getBuckets()

Description copied from interface: Histogram

Returns the histograms buckets

Specified by:

getBuckets in interface Histogram

Returns:

the histogram buckets

mergeBars

static void mergeBars(List<double[]> bars)

flatten

private static List<double[]> flatten(double[] a,
 double[] b)

getQuantileBounds

public double[] getQuantileBounds(double quantile)

Description copied from interface: Histogram

Returns the bounds [minimum, maximum) on the given quantile.

Specified by:

getQuantileBounds in interface Histogram

Parameters:

quantile - desired quantile

Returns:

the quantile bounds

evaluateQuantileFromMax

private double[] evaluateQuantileFromMax(double quantile)

evaluateQuantileFromMin

private double[] evaluateQuantileFromMin(double quantile)

size

public long size()

Specified by:

size in interface Histogram

Returns:

the number of elements in the histogram

event

public void event(double value,
 long time)

Specified by:

event in interface Histogram

expire

public void expire(long time)

Specified by:

expire in interface Histogram