org.apache.commons.math3.stat.inference

## Enum AlternativeHypothesis

- java.lang.Object
- - java.lang.Enum<AlternativeHypothesis>
  - - org.apache.commons.math3.stat.inference.AlternativeHypothesis

- All Implemented Interfaces:
    Serializable, Comparable<AlternativeHypothesis>

      public enum AlternativeHypothesis
      extends Enum<AlternativeHypothesis>

  Represents an alternative hypothesis for a hypothesis test.
  Since:
    3.3

- - ### Enum Constant Summary

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

  - ### Method Summary

    Methods
    Modifier and Type | Method and 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. H0: p=p0, H1: p ≠ p0

    - #### GREATER_THAN

          public static final AlternativeHypothesis GREATER_THAN

      Represents a right-sided test. H0: p ≤ p0, H1: p > p0.

    - #### LESS_THAN

          public static final AlternativeHypothesis LESS_THAN

      Represents a left-sided test. H0: p ≥ p0, 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

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