com.facebook.presto.operator.aggregation.state

Interface VarianceState

All Superinterfaces:

AccumulatorState

public interface VarianceState
extends AccumulatorState

Method Summary

Modifier and Type	Method and Description
long	getCount()
double	getM2()
double	getMean()
void	setCount(long value)
void	setM2(double value)
void	setMean(double value)

Methods inherited from interface com.facebook.presto.spi.function.AccumulatorState

getEstimatedSize

Method Detail

getCount

long getCount()

setCount

void setCount(long value)

getMean

double getMean()

setMean

void setMean(double value)

getM2

double getM2()

setM2

void setM2(double value)