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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      https://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  /*
19   * This is not the original file distributed by the Apache Software Foundation
20   * It has been modified by the Hipparchus project
21   */
22  package org.hipparchus.stat.inference;
23  
24  /**
25   * Represents an alternative hypothesis for a hypothesis test.
26   *
27   */
28  public enum AlternativeHypothesis {
29  
30      /**
31       * Represents a two-sided test. H0: p=p0, H1: p ≠ p0
32       */
33      TWO_SIDED,
34  
35      /**
36       * Represents a right-sided test. H0: p ≤ p0, H1: p > p0.
37       */
38      GREATER_THAN,
39  
40      /**
41       * Represents a left-sided test. H0: p ≥ p0, H1: p < p0.
42       */
43      LESS_THAN
44  }