Module org.elasticsearch.compute
Class WelfordAlgorithm
java.lang.Object
org.elasticsearch.compute.aggregation.WelfordAlgorithm
Algorithm for calculating standard deviation, one value at a time.
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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WelfordAlgorithm
public WelfordAlgorithm() -
WelfordAlgorithm
public WelfordAlgorithm(double mean, double m2, long count)
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Method Details
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mean
public double mean() -
m2
public double m2() -
count
public long count() -
add
public void add(int value) -
add
public void add(long value) -
add
public void add(double value) -
add
public void add(double meanValue, double m2Value, long countValue) -
evaluate
public double evaluate()
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