com.emphysic.myriad.core.data.ops.math

Class Stats

java.lang.Object

com.emphysic.myriad.core.data.ops.math.Stats

public class Stats
extends java.lang.Object

Stats - general purpose statistical functions.

Constructor Summary

Constructors

Constructor and Description
Stats()

Method Summary

Modifier and Type	Method and Description
static double	max(Dataset dataset) Returns the maximum of the data
static double	max(double[] data) Returns the maximum of the data
static double	mean(Dataset dataset) Calculates the mean value of the input
static double	mean(double[] data) Calculates the mean of the input data
static double	min(Dataset dataset) Returns the minimum of the data
static double	min(double[] data) Returns the minimum of the data
static double	stddev(Dataset dataset) Calculates the standard deviation of the data
static double	stddev(double[] data) Calculates the standard deviation of the data
static double	variance(Dataset dataset) Calculates the variance of the input data
static double	variance(double[] data) Calculates the variance of the input data

Methods inherited from class java.lang.Object

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

Constructor Detail

Stats

public Stats()

Method Detail

mean

public static double mean(double[] data)

Calculates the mean of the input data

Parameters:

data - elements

Returns:

mean

Throws:

java.lang.IllegalArgumentException - if input array was null

mean

public static double mean(Dataset dataset)

Calculates the mean value of the input

Parameters:

dataset - input

Returns:

mean

Throws:

java.lang.IllegalArgumentException - if input array was null

variance

public static double variance(double[] data)

Calculates the variance of the input data

Parameters:

data - elements

Returns:

variance

Throws:

java.lang.IllegalArgumentException - if input array was null

variance

public static double variance(Dataset dataset)

Calculates the variance of the input data

Parameters:

dataset - elements

Returns:

variance

Throws:

java.lang.IllegalArgumentException - if input array was null

stddev

public static double stddev(double[] data)

Calculates the standard deviation of the data

Parameters:

data - input data

Returns:

standard deviation

Throws:

java.lang.IllegalArgumentException - if input array was null

stddev

public static double stddev(Dataset dataset)

Calculates the standard deviation of the data

Parameters:

dataset - input data

Returns:

standard deviation

Throws:

java.lang.IllegalArgumentException - if input array was null

min

public static double min(double[] data)

Returns the minimum of the data

Parameters:

data - array to examine

Returns:

minimum value, or Double.MAX_VALUE if data was null or contained no elements

min

public static double min(Dataset dataset)

Returns the minimum of the data

Parameters:

dataset - Dataset to examine

Returns:

minimum value, or Double.MAX_VALUE if data was null or contained no elements

max

public static double max(double[] data)

Returns the maximum of the data

Parameters:

data - array to examine

Returns:

maximum value, or Double.MIN_VALUE if data was null or contained no elements

max

public static double max(Dataset dataset)

Returns the maximum of the data

Parameters:

dataset - Dataset to examine

Returns:

maximum value, or Double.MIN_VALUE if data was null or contained no elements