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diff --git a/src/de/lmu/ifi/dbs/elki/data/model/AbstractModel.java b/src/de/lmu/ifi/dbs/elki/data/model/AbstractModel.java
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+package de.lmu.ifi.dbs.elki.data.model;
+
+/*
+ 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.result.textwriter.TextWriterStream;
+
+/**
+ * Abstract base class for Cluster Models.
+ * 
+ * @author Erich Schubert
+ */
+public abstract class AbstractModel implements Model {
+  /**
+   * Implement writeToText as per
+   * {@link de.lmu.ifi.dbs.elki.result.textwriter.TextWriteable} interface.
+   * However BaseModel is not given the interface directly, since it is meant as
+   * signal to make Models printable.
+   * 
+   * @param out Output steam
+   * @param label Optional label to prefix
+   */
+  // actually @Override, for TextWriteable.
+  public void writeToText(TextWriterStream out, String label) {
+    if(label != null) {
+      out.commentPrintLn(label);
+    }
+    out.commentPrintLn("Model class: " + getClass().getName());
+  }
+}