gov.sns.tools.statistics
Class MutableUnivariateStatistics

java.lang.Object
  |
  +--gov.sns.tools.statistics.UnivariateStatistics
        |
        +--gov.sns.tools.statistics.MutableUnivariateStatistics

public class MutableUnivariateStatistics

extends UnivariateStatistics

MutableUnivariateStatistics calculates statistics of a series of measurements. The statistics can be updated with each additional measurement. Only simple statistics are generated (mean and standard deviation).

Field Summary

Fields inherited from class gov.sns.tools.statistics.UnivariateStatistics

mean, meanSquare, population

Constructor Summary

MutableUnivariateStatistics()
Creates new UnivariateStatistics

MutableUnivariateStatistics(int size, double average, double averageSquare)

MutableUnivariateStatistics(UnivariateStatistics stats)

MutableUnivariateStatistics(UnivariateStatistics stats, double scale)

Method Summary

void	addSample(double value)
void	addSamples(UnivariateStatistics stats)
void	removeSample(double value) Remove a sample from the statistics
void	replaceSample(double oldValue, double newValue) Replace an old sample with a fresh sample.
void	scaleData(double scale)

Methods inherited from class gov.sns.tools.statistics.UnivariateStatistics

mean, population, sampleStandardDeviation, sampleStandardDeviationOfMean, sampleVariance, sampleVarianceOfMean, standardDeviation, standardDeviationOfMean, variance, varianceOfMean

Methods inherited from class java.lang.Object

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

Constructor Detail

MutableUnivariateStatistics

public MutableUnivariateStatistics()

Creates new UnivariateStatistics

MutableUnivariateStatistics

public MutableUnivariateStatistics(UnivariateStatistics stats)

MutableUnivariateStatistics

public MutableUnivariateStatistics(UnivariateStatistics stats,
                                   double scale)

MutableUnivariateStatistics

public MutableUnivariateStatistics(int size,
                                   double average,
                                   double averageSquare)

Method Detail

addSample

public void addSample(double value)

addSamples

public void addSamples(UnivariateStatistics stats)

replaceSample

public void replaceSample(double oldValue,
                          double newValue)

Replace an old sample with a fresh sample. This is useful when updating statistics on circular buffers.

removeSample

public void removeSample(double value)

Remove a sample from the statistics

scaleData

public void scaleData(double scale)