Package com.singularsys.extensions.statistical

Enum Class Variance.Type

java.lang.Object

java.lang.Enum<Variance.Type>

com.singularsys.extensions.statistical.Variance.Type

All Implemented Interfaces:

Serializable, Comparable<Variance.Type>, Constable

Enclosing class:

Variance

public static enum Variance.Type
extends Enum<Variance.Type>

Type of variance or standard deviation to calculate.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
DEVSQ	The sum of squares of the deviations
POPSD	Population standard deviation sqrt(POPVAR)
POPVAR	Population variance, (Sum(x^2) - Sum(x)^2/n) / n
SAMPLESD	Sample standard deviation sqrt(SAMPLEVAR)
SAMPLEVAR	Sample variance, (Sum(x^2) - Sum(x)^2/n) / (n-1)

Method Summary

Modifier and Type	Method	Description
static Variance.Type	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Variance.Type[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

POPVAR

public static final Variance.Type POPVAR

Population variance, (Sum(x^2) - Sum(x)^2/n) / n

SAMPLEVAR

public static final Variance.Type SAMPLEVAR

Sample variance, (Sum(x^2) - Sum(x)^2/n) / (n-1)

POPSD

public static final Variance.Type POPSD

Population standard deviation sqrt(POPVAR)

SAMPLESD

public static final Variance.Type SAMPLESD

Sample standard deviation sqrt(SAMPLEVAR)

DEVSQ

public static final Variance.Type DEVSQ

The sum of squares of the deviations

Method Details

values

public static Variance.Type[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Variance.Type valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null