com.caffinc.jaggr.core.operations

Class StdDevPopOperation

java.lang.Object

com.caffinc.jaggr.core.operations.StdDevPopOperation

All Implemented Interfaces:

Operation

public class StdDevPopOperation
extends Object
implements Operation

Computes Standard Deviation of the Population using Welford's method

Since:

11/29/2016

Author:

Sriram

Constructor Summary

Constructors

Constructor and Description
StdDevPopOperation(String field)

Method Summary

Methods

Modifier and Type	Method and Description
Object	aggregate(Object previousAccumulatedValue, Map<String,Object> object)
Object	result(Object accumulatedValue)

Methods inherited from class java.lang.Object

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

Constructor Detail

StdDevPopOperation

public StdDevPopOperation(String field)

Method Detail

aggregate

public Object aggregate(Object previousAccumulatedValue,
               Map<String,Object> object)

Specified by:

aggregate in interface Operation

result

public Object result(Object accumulatedValue)

Specified by:

result in interface Operation