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Java Source Code / Java Documentation » Science » Apache commons math 1.1 » org.apache.commons.math.stat.descriptive

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.commons.math.stat.descriptive .AbstractUnivariateStatistic

org.apache.commons.math.stat.descriptive .AbstractStorelessUnivariateStatistic

All known Subclasses:   org.apache.commons.math.stat.descriptive.moment .Variance,  org.apache.commons.math.stat.descriptive.summary .Sum,  org.apache.commons.math.stat.descriptive.summary .SumOfLogs,  org.apache.commons.math.stat.descriptive.moment .Skewness,  org.apache.commons.math.stat.descriptive.summary .Product,  org.apache.commons.math.stat.descriptive.moment .FirstMoment,  org.apache.commons.math.stat.descriptive.moment .Mean,  org.apache.commons.math.stat.descriptive.moment .StandardDeviation,  org.apache.commons.math.stat.descriptive.rank .Max,  org.apache.commons.math.stat.descriptive.rank .Min,  org.apache.commons.math.stat.descriptive.summary .SumOfSquares,  org.apache.commons.math.stat.descriptive.moment .GeometricMean,  org.apache.commons.math.stat.descriptive.moment .Kurtosis,
AbstractStorelessUnivariateStatistic
abstract public class AbstractStorelessUnivariateStatistic extends AbstractUnivariateStatistic implements StorelessUnivariateStatistic,Serializable(Code)
Abstract implementation of the StorelessUnivariateStatistic interface.
Provides default evaluate() and incrementAll(double[]) implementations.
Note that these implementations are not synchronized. version:    $Revision: 355770 $ $Date: 2005-12-10 12:48:57 -0700 (Sat, 10 Dec 2005) $

Method Summary
abstract public void clear()

public boolean equals(Object object)
     Returns true iff object is an AbstractStorelessUnivariateStatistic returning the same values as this for getResult() and getN()
Parameters:
  object - object to test equality against.
public double evaluate(double[] values)
     This default implementation calls AbstractStorelessUnivariateStatistic.clear , then invokes AbstractStorelessUnivariateStatistic.increment in a loop over the the input array, and then uses AbstractStorelessUnivariateStatistic.getResult to compute the return value.
public double evaluate(double[] values, int begin, int length)
     This default implementation calls AbstractStorelessUnivariateStatistic.clear , then invokes AbstractStorelessUnivariateStatistic.increment in a loop over the specified portion of the input array, and then uses AbstractStorelessUnivariateStatistic.getResult to compute the return value.
abstract public double getResult()

public int hashCode()

abstract public void increment(double d)

public void incrementAll(double[] values)
     This default implementation just calls AbstractStorelessUnivariateStatistic.increment in a loop over the input array.
public void incrementAll(double[] values, int begin, int length)
     This default implementation just calls AbstractStorelessUnivariateStatistic.increment in a loop over the specified portion of the input array.

Method Detail
clear
abstract public void clear()(Code)

See Also:   org.apache.commons.math.stat.descriptive.StorelessUnivariateStatistic.clear

equals
public boolean equals(Object object)(Code)
Returns true iff object is an AbstractStorelessUnivariateStatistic returning the same values as this for getResult() and getN()
Parameters:
  object - object to test equality against. true if object returns the same value as this

evaluate
public double evaluate(double[] values)(Code)
This default implementation calls AbstractStorelessUnivariateStatistic.clear , then invokes AbstractStorelessUnivariateStatistic.increment in a loop over the the input array, and then uses AbstractStorelessUnivariateStatistic.getResult to compute the return value.
Note that this implementation changes the internal state of the statistic. Its side effects are the same as invoking AbstractStorelessUnivariateStatistic.clear and then AbstractStorelessUnivariateStatistic.incrementAll(double[]) .
Implementations may override this method with a more efficient implementation that works directly with the input array.
If the array is null, an IllegalArgumentException is thrown.
See Also:   org.apache.commons.math.stat.descriptive.UnivariateStatistic.evaluate(double[])

evaluate
public double evaluate(double[] values, int begin, int length)(Code)
This default implementation calls AbstractStorelessUnivariateStatistic.clear , then invokes AbstractStorelessUnivariateStatistic.increment in a loop over the specified portion of the input array, and then uses AbstractStorelessUnivariateStatistic.getResult to compute the return value.
Note that this implementation changes the internal state of the statistic. Its side effects are the same as invoking AbstractStorelessUnivariateStatistic.clear and then AbstractStorelessUnivariateStatistic.incrementAll(double[],int,int) .
Implementations may override this method with a more efficient implementation that works directly with the input array.
If the array is null or the index parameters are not valid, an IllegalArgumentException is thrown.
See Also:   org.apache.commons.math.stat.descriptive.UnivariateStatistic.evaluate(double[]intint)

getResult
abstract public double getResult()(Code)

See Also:   org.apache.commons.math.stat.descriptive.StorelessUnivariateStatistic.getResult

hashCode
public int hashCode()(Code)
Returns hash code based on getResult() and getN() hash code

increment
abstract public void increment(double d)(Code)

See Also:   org.apache.commons.math.stat.descriptive.StorelessUnivariateStatistic.increment(double)

incrementAll
public void incrementAll(double[] values)(Code)
This default implementation just calls AbstractStorelessUnivariateStatistic.increment in a loop over the input array.
Throws IllegalArgumentException if the input values array is null.
Parameters:
  values - values to add
throws:
  IllegalArgumentException - if values is null
See Also:   org.apache.commons.math.stat.descriptive.StorelessUnivariateStatistic.incrementAll(double[])

incrementAll
public void incrementAll(double[] values, int begin, int length)(Code)
This default implementation just calls AbstractStorelessUnivariateStatistic.increment in a loop over the specified portion of the input array.
Throws IllegalArgumentException if the input values array is null.
Parameters:
  values - array holding values to add
Parameters:
  begin - index of the first array element to add
Parameters:
  length - number of array elements to add
throws:
  IllegalArgumentException - if values is null
See Also:   org.apache.commons.math.stat.descriptive.StorelessUnivariateStatistic.incrementAll(double[]intint)

Methods inherited from org.apache.commons.math.stat.descriptive.AbstractUnivariateStatistic
public double evaluate(double[] values)(Code)(Java Doc)
abstract public double evaluate(double[] values, int begin, int length)(Code)(Java Doc)
protected boolean test(double[] values, int begin, int length)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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