ExponentiallyWeightedMovingAverage (elasticsearch-extend 3.2 API)

java.lang.Object
- org.elasticsearch.common.ExponentiallyWeightedMovingAverage

```
public class ExponentiallyWeightedMovingAverage
extends Object
```
Implements exponentially weighted moving averages (commonly abbreviated EWMA) for a single value. This class is safe to share between threads.

Constructor Summary

Constructors
Constructor	Description
`ExponentiallyWeightedMovingAverage(double alpha, double initialAvg)`	Create a new EWMA with a given `alpha` and `initialAvg`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

void addValue(double newValue)

double getAverage()
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ExponentiallyWeightedMovingAverage
```
public ExponentiallyWeightedMovingAverage(double alpha,
                                          double initialAvg)
```
    Create a new EWMA with a given alpha and initialAvg. A smaller alpha means that new data points will have less weight, where a high alpha means older data points will have a lower influence.
- Method Detail
  - getAverage
```
public double getAverage()
```
  - addValue
```
public void addValue(double newValue)
```