Import Debian changes 0.6.0~beta2-1

elki (0.6.0~beta2-1) unstable; urgency=low

  * New upstream beta release.
  * 3DPC extension is not yet included.

1 files changed, 90 insertions, 0 deletions

diff --git a/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/RayleighMADEstimator.java b/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/RayleighMADEstimator.java
new file mode 100644
index 00000000..7382ada2
--- /dev/null
+++ b/src/de/lmu/ifi/dbs/elki/math/statistics/distribution/estimator/RayleighMADEstimator.java
@@ -0,0 +1,90 @@
+package de.lmu.ifi.dbs.elki.math.statistics.distribution.estimator;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2013
+ 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.math.statistics.distribution.RayleighDistribution;
+import de.lmu.ifi.dbs.elki.utilities.documentation.Reference;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
+
+/**
+ * Estimate the parameters of a RayleighDistribution using the MAD.
+ * 
+ * Reference:
+ * <p>
+ * D. J. Olive<br />
+ * Applied Robust Statistics<br />
+ * Preprint of an upcoming book, University of Minnesota
+ * </p>
+ * 
+ * @author Erich Schubert
+ * 
+ * @apiviz.has RayleighDistribution - - estimates
+ */
+@Reference(title = "Applied Robust Statistics", authors = "D. J. Olive", booktitle = "Applied Robust Statistics", url = "http://lagrange.math.siu.edu/Olive/preprints.htm")
+public class RayleighMADEstimator extends AbstractMADEstimator<RayleighDistribution> {
+  /**
+   * Static instance.
+   */
+  public static final RayleighMADEstimator STATIC = new RayleighMADEstimator();
+
+  /**
+   * Constructor. Private: use static instance!
+   */
+  private RayleighMADEstimator() {
+    super();
+  }
+
+  /**
+   * See reference for the derivation of this constants.
+   */
+  private static final double F1 = 1. / 0.448453, F2 = 1.17741 * F1;
+
+  @Override
+  public RayleighDistribution estimateFromMedianMAD(double median, double mad) {
+    return new RayleighDistribution(median - F2 * mad, F1 * mad);
+  }
+
+  @Override
+  public Class<? super RayleighDistribution> getDistributionClass() {
+    return RayleighDistribution.class;
+  }
+
+  @Override
+  public String toString() {
+    return this.getClass().getSimpleName();
+  }
+
+  /**
+   * Parameterization class.
+   * 
+   * @author Erich Schubert
+   * 
+   * @apiviz.exclude
+   */
+  public static class Parameterizer extends AbstractParameterizer {
+    @Override
+    protected RayleighMADEstimator makeInstance() {
+      return STATIC;
+    }
+  }
+}