Package org.apache.commons.statistics.inference

Enum AlternativeHypothesis

java.lang.Object

java.lang.Enum<AlternativeHypothesis>

org.apache.commons.statistics.inference.AlternativeHypothesis

All Implemented Interfaces:

Serializable, Comparable<AlternativeHypothesis>

public enum AlternativeHypothesis
extends Enum<AlternativeHypothesis>

Represents an alternative hypothesis for a hypothesis test.

Since:

1.1

See Also:

Alternative hypothesis (Wikipedia)

Enum Constant Summary

Enum Constants

Enum Constant	Description
GREATER_THAN	Represents a right-sided test.
LESS_THAN	Represents a left-sided test.
TWO_SIDED	Represents a two-sided test.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

TWO_SIDED

public static final AlternativeHypothesis TWO_SIDED

Represents a two-sided test.

• Null hypothesis (H₀): p = p0
• Alternative hypothesis (H₁): p != p0

GREATER_THAN

public static final AlternativeHypothesis GREATER_THAN

Represents a right-sided test.

• Null hypothesis (H₀): p <= p0
• Alternative hypothesis (H₁): p > p0

LESS_THAN

public static final AlternativeHypothesis LESS_THAN

Represents a left-sided test.

• Null hypothesis (H₀): p >= p0
• Alternative hypothesis (H₁): p < p0

Method Detail

values

public static AlternativeHypothesis[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (AlternativeHypothesis c : AlternativeHypothesis.values())
    System.out.println(c);

Returns:

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

valueOf

public static AlternativeHypothesis valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type has no constant with the specified name

NullPointerException - if the argument is null