Class AggregateDataCorr

java.lang.Object

org.h2.expression.aggregate.AggregateData

org.h2.expression.aggregate.AggregateDataBinarySet

org.h2.expression.aggregate.AggregateDataCorr

final class AggregateDataCorr
extends AggregateDataBinarySet

Data stored while calculating a CORR, REG_SLOPE, REG_INTERCEPT, or REGR_R2 aggregate.

Field Summary

Fields

Modifier and Type	Field	Description
private final AggregateType	aggregateType
private long	count
private double	m2x
private double	m2y
private double	meanX
private double	meanY
private double	sumX
private double	sumY
private double	sumYX

Constructor Summary

Constructors

Constructor	Description
AggregateDataCorr(AggregateType aggregateType)

Method Summary

Modifier and Type	Method	Description
(package private) void	add(SessionLocal session, Value yValue, Value xValue)
(package private) Value	getValue(SessionLocal session)	Get the aggregate result.

Methods inherited from class AggregateDataBinarySet

add

Methods inherited from class Object

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

Field Details

aggregateType

private final AggregateType aggregateType

count

private long count

sumY

private double sumY

sumX

private double sumX

sumYX

private double sumYX

m2y

private double m2y

meanY

private double meanY

m2x

private double m2x

meanX

private double meanX

Constructor Details

AggregateDataCorr

AggregateDataCorr(AggregateType aggregateType)

Method Details

add

void add(SessionLocal session,
 Value yValue,
 Value xValue)

Specified by:

add in class AggregateDataBinarySet

getValue

Value getValue(SessionLocal session)

Description copied from class: AggregateData

Get the aggregate result.

Specified by:

getValue in class AggregateData

Parameters:

session - the session

Returns:

the value