gov.sns.tools.statistics
Class ArrayStatistics

java.lang.Object
  |
  +--gov.sns.tools.statistics.ArrayStatistics

public class ArrayStatistics

extends java.lang.Object

Manage statistics on a multi-dimensional array.

Field Summary

protected int[]	dimensions
protected java.lang.Object	mean
protected java.lang.Object	meanSquare
protected int	population

Constructor Summary

ArrayStatistics(int dim)
Convenience constructor for handling a one dimensional vector.

ArrayStatistics(int[] dim)
Creates a new instance of ArrayStatistics

ArrayStatistics(int dim1, int dim2)
Convenience constructor for handling a two dimensional Matrix.

Method Summary

void	addSample(java.lang.Object sample) Add a sample array to average into the population.
java.lang.Object	getMean() Get the mean array
java.lang.Object	sampleStandardDeviation() Sample standard deviation
java.lang.Object	sampleStandardDeviationOfMean() Sample standard deviation of the mean
java.lang.Object	sampleVariance() Sample variance
java.lang.Object	sampleVarianceOfMean() Sample variance of mean
java.lang.Object	standardDeviation() Standard deviation
java.lang.Object	standardDeviationOfMean() Standard deviation of the mean
java.lang.Object	variance() Get the variance array
java.lang.Object	varianceOfMean() Get the variance of the mean

Methods inherited from class java.lang.Object

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

Field Detail

dimensions

protected int[] dimensions

population

protected int population

mean

protected java.lang.Object mean

meanSquare

protected java.lang.Object meanSquare

Constructor Detail

ArrayStatistics

public ArrayStatistics(int[] dim)

Creates a new instance of ArrayStatistics

Parameters:

dim - an array of sizes (one size for each dimension of the array)

ArrayStatistics

public ArrayStatistics(int dim)

Convenience constructor for handling a one dimensional vector.

ArrayStatistics

public ArrayStatistics(int dim1,
                       int dim2)

Convenience constructor for handling a two dimensional Matrix.

Method Detail

getMean

public java.lang.Object getMean()

Get the mean array

variance

public java.lang.Object variance()

Get the variance array

sampleVariance

public java.lang.Object sampleVariance()

Sample variance

varianceOfMean

public java.lang.Object varianceOfMean()

Get the variance of the mean

sampleVarianceOfMean

public java.lang.Object sampleVarianceOfMean()

Sample variance of mean

standardDeviation

public java.lang.Object standardDeviation()

Standard deviation

sampleStandardDeviation

public java.lang.Object sampleStandardDeviation()

Sample standard deviation

standardDeviationOfMean

public java.lang.Object standardDeviationOfMean()

Standard deviation of the mean

sampleStandardDeviationOfMean

public java.lang.Object sampleStandardDeviationOfMean()

Sample standard deviation of the mean

addSample

public void addSample(java.lang.Object sample)

Add a sample array to average into the population. The dimensions of the sample array must match the specified dimensions.