Package org.anchoranalysis.plugin.image.feature.bean.histogram.statistic

Class Variance

Object

AnchorBean<Feature<FeatureInputHistogram>>

InitializableBean<Feature<FeatureInputHistogram>,FeatureInitialization>

Feature<FeatureInputHistogram>

FeatureHistogram

FeatureHistogramStatistic

Variance

public class Variance
extends FeatureHistogramStatistic

Calculates the variance of all the values in the histogram.

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
Variance()

Method Summary

Modifier and Type	Method	Description
protected double	calculateStatisticFrom(Histogram histogram)	Calculates the statistic from the histogram, that is subsequently returned as the feature-value.

Methods inherited from class org.anchoranalysis.image.feature.bean.histogram.FeatureHistogramStatistic

calculate, getValueIfEmpty, isExceptionIfEmpty, setExceptionIfEmpty, setValueIfEmpty

Methods inherited from class org.anchoranalysis.image.feature.bean.FeatureHistogram

inputType

Methods inherited from class org.anchoranalysis.feature.bean.Feature

assignTo, beforeCalc, calculateCheckInitialized, castAs, createListChildFeatures, describeBean, describeParameters, descriptionLong, duplicateChangeName, getCustomName, getFriendlyName, onInitialization, setCustomName, toString

Methods inherited from class org.anchoranalysis.bean.initializable.InitializableBean

getInitialization, getLogger, getPropertyInitializer, initialize, initializeRecursive, initRecursiveWithInitializer, isInitialized

Methods inherited from class org.anchoranalysis.bean.AnchorBean

checkMisconfigured, describeChildren, duplicateBean, fields, findFieldsOfClass, getBeanName, getLocalPath, localise

Methods inherited from class java.lang.Object

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

Constructor Details

Variance

public Variance()

Method Details

calculateStatisticFrom

protected double calculateStatisticFrom(Histogram histogram)
                                 throws FeatureCalculationException

Description copied from class: FeatureHistogramStatistic

Calculates the statistic from the histogram, that is subsequently returned as the feature-value.

Specified by:

calculateStatisticFrom in class FeatureHistogramStatistic

Parameters:

histogram - the histogram to calculate the statistic from.

Returns:

the calculated statistic.

Throws:

FeatureCalculationException - if the calculation cannot succeed.