org.codelibs.elasticsearch.taste.common.RunningAverageAndStdDev Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codelibs.elasticsearch.taste.common;
/**
*
* Extends {@link RunningAverage} by adding standard deviation too.
*
*/
public interface RunningAverageAndStdDev extends RunningAverage {
/** @return standard deviation of data */
double getStandardDeviation();
/**
* @return a (possibly immutable) object whose average is the negative of this object's
*/
@Override
RunningAverageAndStdDev inverse();
}