EWMA$

java.lang.Object
- akka.cluster.metrics.EWMA$

All Implemented Interfaces:: java.io.Serializable

public class EWMA$
extends java.lang.Object
implements java.io.Serializable

See Also:: Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static EWMA$ MODULE$
Static reference to the singleton instance of this Scala object.

Constructor Summary

Constructors
Constructor Description

EWMA$()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`alpha(scala.concurrent.duration.FiniteDuration halfLife, scala.concurrent.duration.FiniteDuration collectInterval)`	Calculate the alpha (decay factor) used in `akka.cluster.EWMA` from specified half-life and interval between observations.
`EWMA`	`apply(double value, double alpha)`
`scala.Option<scala.Tuple2<java.lang.Object,java.lang.Object>>`	`unapply(EWMA x$0)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MODULE$
```
public static final EWMA$ MODULE$
```
    Static reference to the singleton instance of this Scala object.
- Constructor Detail
  - EWMA$
```
public EWMA$()
```
- Method Detail
  - alpha
```
public double alpha(scala.concurrent.duration.FiniteDuration halfLife,
                    scala.concurrent.duration.FiniteDuration collectInterval)
```
    Calculate the alpha (decay factor) used in akka.cluster.EWMA from specified half-life and interval between observations. Half-life is the interval over which the weights decrease by a factor of two. The relevance of each data sample is halved for every passing half-life duration, i.e. after 4 times the half-life, a data sample’s relevance is reduced to 6% of its original relevance. The initial relevance of a data sample is given by 1 – 0.5 ^ (collect-interval / half-life).
  - apply
```
public EWMA apply(double value,
                  double alpha)
```
  - unapply
```
public scala.Option<scala.Tuple2<java.lang.Object,java.lang.Object>> unapply(EWMA x$0)
```