repicea.stats.estimates

Class VarianceEstimate

java.lang.Object

repicea.stats.RandomVariable<D>

repicea.stats.estimates.Estimate<ChiSquaredDistribution>

repicea.stats.estimates.VarianceEstimate

All Implemented Interfaces:

java.io.Serializable, CentralMomentsGettable

public class VarianceEstimate
extends Estimate<ChiSquaredDistribution>

The VarianceEstimate is a class of Estimate that suits the variance estimation. The distribution of the estimate is assumed to be a Chi Square.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class repicea.stats.estimates.Estimate

Estimate.EstimatorType

Field Summary

Fields inherited from class repicea.stats.estimates.Estimate

estimatorType, rowIndex

Constructor Summary

Constructors

Constructor and Description
VarianceEstimate(int degreesOfFreedom, double mean) Constructor with mean only.

Method Summary

Modifier and Type	Method and Description
ConfidenceInterval	getConfidenceIntervalBounds(double oneMinusAlpha) This method returns the probability of getting a lower valueand upper bound of a confidence intervals at probability level 1 - alpha

Methods inherited from class repicea.stats.estimates.Estimate

getDifferenceEstimate, getEstimatorType, getProductEstimate, getProductEstimate, getProductOfManyEstimates, getRandomDeviate, getRowIndex, getSumEstimate, isMergeableEstimate, setRowIndex

Methods inherited from class repicea.stats.RandomVariable

getDistribution, getMean, getVariance

Methods inherited from class java.lang.Object

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

Constructor Detail

VarianceEstimate

public VarianceEstimate(int degreesOfFreedom,
                        double mean)

Constructor with mean only.

Parameters:

degreesOfFreedom - the degrees of freedom

mean - the estimated mean

Method Detail

getConfidenceIntervalBounds

public ConfidenceInterval getConfidenceIntervalBounds(double oneMinusAlpha)

Description copied from class: Estimate

This method returns the probability of getting a lower valueand upper bound of a confidence intervals at probability level 1 - alpha

Specified by:

getConfidenceIntervalBounds in class Estimate<ChiSquaredDistribution>

Parameters:

oneMinusAlpha - is 1 minus the probability of Type I error

Returns:

a ConfidenceInterval instance