Coverage Report - datafu.pig.stats.Median
 
Classes in this File Line Coverage Branch Coverage Complexity
Median
100%
2/2
N/A
1
 
 1  
 /*
 2  
  * Copyright 2010 LinkedIn, Inc
 3  
  * 
 4  
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 5  
  * use this file except in compliance with the License. You may obtain a copy of
 6  
  * the License at
 7  
  * 
 8  
  * http://www.apache.org/licenses/LICENSE-2.0
 9  
  * 
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 12  
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 13  
  * License for the specific language governing permissions and limitations under
 14  
  * the License.
 15  
  */
 16  
  
 17  
 package datafu.pig.stats;
 18  
 
 19  
 /**
 20  
  * Computes the {@link <a href="http://en.wikipedia.org/wiki/Median" target="_blank">median</a>} 
 21  
  * for a <b>sorted</b> input bag, using type R-2 estimation.  This is a convenience wrapper around Quantile.
 22  
  *
 23  
  * <p>
 24  
  * N.B., all the data is pushed to a single reducer per key, so make sure some partitioning is 
 25  
  * done (e.g., group by 'day') if the data is too large.  That is, this isn't distributed median.
 26  
  * </p>
 27  
  * 
 28  
  * @see Quantile
 29  
  */
 30  
 public class Median extends Quantile
 31  
 {
 32  
   public Median()
 33  
   {
 34  743
     super("0.5");
 35  743
   }
 36  
 }