1 files changed, 5 insertions, 3 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/logging/statistics/NanoDuration.java b/src/de/lmu/ifi/dbs/elki/logging/statistics/NanoDuration.java
index 77acbbdb..07c074f0 100644
--- a/src/de/lmu/ifi/dbs/elki/logging/statistics/NanoDuration.java
+++ b/src/de/lmu/ifi/dbs/elki/logging/statistics/NanoDuration.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.logging.statistics;
  This file is part of ELKI:
  Environment for Developing KDD-Applications Supported by Index-Structures
 
- Copyright (C) 2013
+ Copyright (C) 2014
  Ludwig-Maximilians-Universität München
  Lehr- und Forschungseinheit für Datenbanksysteme
  ELKI Development Team
@@ -44,13 +44,15 @@ public class NanoDuration extends AbstractStatistic implements Duration {
   }
 
   @Override
-  public void begin() {
+  public NanoDuration begin() {
     begin = System.nanoTime();
+    return this;
   }
 
   @Override
-  public void end() {
+  public NanoDuration end() {
     end = System.nanoTime();
+    return this;
   }
 
   @Override