Welfords (venice API)

java.lang.Object
- com.linkedin.alpini.base.statistics.Welfords

Direct Known Subclasses:

Welfords.DoubleWelford, Welfords.LongWelford
```
public abstract class Welfords
extends java.lang.Object
```
Welford's algorithm for calculating variance.

See Also:

"B.P.Welford (1962)"

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Welfords.DoubleWelford

static class Welfords.LongWelford

static class Welfords.Result

Constructor Summary

Constructors
Modifier Constructor Description

protected Welfords()

protected Welfords(Welfords previous)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(double value)`
`Welfords.Result`	`getResult()`
`void`	`merge(Welfords other)`
`void`	`reset()`

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

Constructor Detail

Welfords
```
protected Welfords()
```

Welfords

protected Welfords(Welfords previous)

Method Detail

reset
```
public final void reset()
```

accept

public final void accept(double value)

merge
```
public void merge(Welfords other)
```

getResult

@Nonnull
public Welfords.Result getResult()