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diff --git a/src/de/lmu/ifi/dbs/elki/distance/distancefunction/correlation/SquaredUncenteredCorrelationDistanceFunction.java b/src/de/lmu/ifi/dbs/elki/distance/distancefunction/correlation/SquaredUncenteredCorrelationDistanceFunction.java
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+++ b/src/de/lmu/ifi/dbs/elki/distance/distancefunction/correlation/SquaredUncenteredCorrelationDistanceFunction.java
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+package de.lmu.ifi.dbs.elki.distance.distancefunction.correlation;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2014
+ Ludwig-Maximilians-Universität München
+ Lehr- und Forschungseinheit für Datenbanksysteme
+ ELKI Development Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import de.lmu.ifi.dbs.elki.data.NumberVector;
+import de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractNumberVectorDistanceFunction;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
+
+/**
+ * Squared uncentered correlation distance function for feature vectors.
+ * 
+ * This is highly similar to {@link SquaredPearsonCorrelationDistanceFunction},
+ * but uses a fixed mean of 0 instead of the sample mean.
+ * 
+ * @author Erich Schubert
+ */
+public class SquaredUncenteredCorrelationDistanceFunction extends AbstractNumberVectorDistanceFunction {
+  /**
+   * Static instance.
+   */
+  public static final SquaredUncenteredCorrelationDistanceFunction STATIC = new SquaredUncenteredCorrelationDistanceFunction();
+
+  /**
+   * Constructor - use {@link #STATIC} instead.
+   * 
+   * @deprecated Use static instance!
+   */
+  @Deprecated
+  public SquaredUncenteredCorrelationDistanceFunction() {
+    super();
+  }
+
+  @Override
+  public double distance(NumberVector v1, NumberVector v2) {
+    final double pcc = UncenteredCorrelationDistanceFunction.uncenteredCorrelation(v1, v2);
+    return 1. - pcc * pcc;
+  }
+
+  @Override
+  public String toString() {
+    return "SquaredUncenteredCorrelationDistanceFunction";
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if(obj == null) {
+      return false;
+    }
+    return this.getClass().equals(obj.getClass());
+  }
+
+  /**
+   * Parameterization class.
+   * 
+   * @author Erich Schubert
+   * 
+   * @apiviz.exclude
+   */
+  public static class Parameterizer extends AbstractParameterizer {
+    @Override
+    protected SquaredUncenteredCorrelationDistanceFunction makeInstance() {
+      return SquaredUncenteredCorrelationDistanceFunction.STATIC;
+    }
+  }
+}
+\ No newline at end of file