1 files changed, 4 insertions, 3 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/utilities/scaling/outlier/StandardDeviationScaling.java b/src/de/lmu/ifi/dbs/elki/utilities/scaling/outlier/StandardDeviationScaling.java
index 10db8e56..6ef5c006 100644
--- a/src/de/lmu/ifi/dbs/elki/utilities/scaling/outlier/StandardDeviationScaling.java
+++ b/src/de/lmu/ifi/dbs/elki/utilities/scaling/outlier/StandardDeviationScaling.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.utilities.scaling.outlier;
  This file is part of ELKI:
  Environment for Developing KDD-Applications Supported by Index-Structures
 
- Copyright (C) 2011
+ Copyright (C) 2012
  Ludwig-Maximilians-Universität München
  Lehr- und Forschungseinheit für Datenbanksysteme
  ELKI Development Team
@@ -26,6 +26,7 @@ package de.lmu.ifi.dbs.elki.utilities.scaling.outlier;
 import de.lmu.ifi.dbs.elki.database.ids.DBID;
 import de.lmu.ifi.dbs.elki.math.MathUtil;
 import de.lmu.ifi.dbs.elki.math.MeanVariance;
+import de.lmu.ifi.dbs.elki.math.statistics.distribution.NormalDistribution;
 import de.lmu.ifi.dbs.elki.result.outlier.OutlierResult;
 import de.lmu.ifi.dbs.elki.utilities.documentation.Reference;
 import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
@@ -44,7 +45,7 @@ import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.DoubleParameter;
  * 
  * @author Erich Schubert
  */
-@Reference(authors="H.-P. Kriegel, P. Kröger, E. Schubert, A. Zimek", title="Interpreting and Unifying Outlier Scores", booktitle="Proc. 11th SIAM International Conference on Data Mining (SDM), Mesa, AZ, 2011", url="http://www.dbs.ifi.lmu.de/~zimek/publications/SDM2011/SDM11-outlier-preprint.pdf")
+@Reference(authors="H.-P. Kriegel, P. Kröger, E. Schubert, A. Zimek", title="Interpreting and Unifying Outlier Scores", booktitle="Proc. 11th SIAM International Conference on Data Mining (SDM), Mesa, AZ, 2011", url="http://siam.omnibooksonline.com/2011datamining/data/papers/018.pdf")
 public class StandardDeviationScaling implements OutlierScalingFunction {
   /**
    * Parameter to specify a fixed mean to use.
@@ -107,7 +108,7 @@ public class StandardDeviationScaling implements OutlierScalingFunction {
     if(value <= mean) {
       return 0;
     }
-    return Math.max(0, MathUtil.erf((value - mean) / factor));
+    return Math.max(0, NormalDistribution.erf((value - mean) / factor));
   }
 
   @Override