001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.math3.stat.inference; 018 019/** 020 * Represents an alternative hypothesis for a hypothesis test. 021 * 022 * @since 3.3 023 */ 024public enum AlternativeHypothesis { 025 026 /** 027 * Represents a two-sided test. H0: p=p0, H1: p ≠ p0 028 */ 029 TWO_SIDED, 030 031 /** 032 * Represents a right-sided test. H0: p ≤ p0, H1: p > p0. 033 */ 034 GREATER_THAN, 035 036 /** 037 * Represents a left-sided test. H0: p ≥ p0, H1: p < p0. 038 */ 039 LESS_THAN 040}