org.forester.util
Interface DescriptiveStatistics

All Known Implementing Classes:

BasicDescriptiveStatistics

public interface DescriptiveStatistics

Field Summary

static java.lang.String

PLUS_MINUS

Method Summary

void	addValue(double d)
double	arithmeticMean()
java.lang.String	asSummary()
double	coefficientOfVariation() Computes the coefficient of variation.
java.util.List<java.lang.Double>	getData()
double[]	getDataAsDoubleArray()
java.lang.String	getDescription()
double	getMax()
double	getMin()
int	getN()
double	getSum()
java.lang.String	getSummaryAsString()
double	getValue(int index)
double	median()
double	midrange()
double	pearsonianSkewness() Determines relationship between the mean and the median.
double	sampleStandardDeviation()
double	sampleStandardUnit(double value)
double	sampleVariance()
void	setDescription(java.lang.String desc)
double	standardErrorOfMean()
double	sumDeviations()
java.lang.String	toString()

Field Detail

PLUS_MINUS

static final java.lang.String PLUS_MINUS

See Also:

Constant Field Values

Method Detail

addValue

void addValue(double d)

arithmeticMean

double arithmeticMean()

asSummary

java.lang.String asSummary()

coefficientOfVariation

double coefficientOfVariation()

Computes the coefficient of variation. Used to express standard deviation independent of units of measure.

Returns:

getDataAsDoubleArray

double[] getDataAsDoubleArray()

getData

java.util.List<java.lang.Double> getData()

getMax

double getMax()

getMin

double getMin()

getN

int getN()

getSum

double getSum()

getSummaryAsString

java.lang.String getSummaryAsString()

getValue

double getValue(int index)

median

double median()

midrange

double midrange()

pearsonianSkewness

double pearsonianSkewness()

Determines relationship between the mean and the median. This reflects how the data differs from the normal bell shaped distribution.

Returns:

sampleStandardDeviation

double sampleStandardDeviation()

sampleStandardUnit

double sampleStandardUnit(double value)

sampleVariance

double sampleVariance()

standardErrorOfMean

double standardErrorOfMean()

sumDeviations

double sumDeviations()

toString

java.lang.String toString()

Overrides:

toString in class java.lang.Object

setDescription

void setDescription(java.lang.String desc)

getDescription

java.lang.String getDescription()