From 24e57f68ed5e98bcfa9042c280e7db81ef2065c2 Mon Sep 17 00:00:00 2001
From: Marcel Kronfeld <makron@gmx.net>
Date: Mon, 16 Aug 2010 08:35:56 +0000
Subject: [PATCH] Cosmetics (synch with MK branch)

---
 src/eva2/server/go/populations/Population.java | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/eva2/server/go/populations/Population.java b/src/eva2/server/go/populations/Population.java
index 9cdd32e5..80a658ef 100644
--- a/src/eva2/server/go/populations/Population.java
+++ b/src/eva2/server/go/populations/Population.java
@@ -1005,6 +1005,24 @@ public class Population extends ArrayList implements PopulationInterface, Clonea
     	return pop;
     }
     
+    /** 
+     * This method returns the n current worst individuals from the population, where
+     * the sorting criterion is delivered by an AbstractEAIndividualComparator.
+     * There are less than n individuals returned if the population is smaller than n.
+     * If n is <= 0, then all individuals are returned and effectively just sorted
+     * by fitness.
+     * This does not check constraints!
+     * 
+     * @param n	number of individuals to look out for
+     * @return The m worst individuals, where m <= n
+     * 
+     */
+    public Population getWorstNIndividuals(int n, int fitIndex) {
+    	Population pop = new Population(n);
+    	getSortedNIndividuals(n, false, pop, new AbstractEAIndividualComparator(fitIndex));
+    	return pop;
+    }
+    
     /** 
      * This method returns a clone of the population instance with sorted individuals, where
      * the sorting criterion is delivered by a Comparator.