org.apache.commons.math3.stat.descriptive
Class ListUnivariateImpl

java.lang.Object
  org.apache.commons.math3.stat.descriptive.DescriptiveStatistics
      org.apache.commons.math3.stat.descriptive.ListUnivariateImpl

All Implemented Interfaces:

Serializable, StatisticalSummary

public class ListUnivariateImpl
extends DescriptiveStatistics
implements Serializable

Version:

$Id: ListUnivariateImpl.java 1334421 2012-05-05 13:41:04Z tn $

See Also:

Serialized Form

list

protected List<Object> list

Holds a reference to a list - GENERICs are going to make our lives easier here as we could only accept List

transformer

protected NumberTransformer transformer

Number Transformer maps Objects to Number for us.

ListUnivariateImpl

public ListUnivariateImpl()

No argument Constructor

ListUnivariateImpl

public ListUnivariateImpl(List<Object> list)

Construct a ListUnivariate with a specific List.

Parameters:

list - The list that will back this DescriptiveStatistics

ListUnivariateImpl

public ListUnivariateImpl(List<Object> list,
                          NumberTransformer transformer)

Construct a ListUnivariate with a specific List.

Parameters:

list - The list that will back this DescriptiveStatistics

transformer - the number transformer used to convert the list items.

getValues

public double[] getValues()

Overrides:

getValues in class DescriptiveStatistics

getElement

public double getElement(int index)

Overrides:

getElement in class DescriptiveStatistics

getN

public long getN()

Specified by:

getN in interface StatisticalSummary

Overrides:

getN in class DescriptiveStatistics

addValue

public void addValue(double v)

Overrides:

addValue in class DescriptiveStatistics

addObject

public void addObject(Object o)

Adds an object to this list.

Parameters:

o - Object to add to the list

clear

public void clear()

Clears all statistics.

N.B.: This method has the side effect of clearing the underlying list.

Overrides:

clear in class DescriptiveStatistics

apply

public double apply(UnivariateStatistic stat)

Apply the given statistic to this univariate collection.

Overrides:

apply in class DescriptiveStatistics

Parameters:

stat - the statistic to apply

Returns:

the computed value of the statistic.

getTransformer

public NumberTransformer getTransformer()

Access the number transformer.

Returns:

the number transformer.

setTransformer

public void setTransformer(NumberTransformer transformer)

Modify the number transformer.

Parameters:

transformer - the new number transformer.

setWindowSize

public void setWindowSize(int windowSize)

Overrides:

setWindowSize in class DescriptiveStatistics