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The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This version represents the developer version, the "bleeding edge" of development, you could say. New functionality gets added to this version.

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/*
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see .
 */

/*
 *    ScatterPlotMatrix.java
 *    Copyright (C) 2015 University of Waikato, Hamilton, New Zealand
 *
 */

package weka.knowledgeflow.steps;

import weka.gui.knowledgeflow.KFGUIConsts;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Step that collects data for display in a scatter plot matrix.
 *
 * @author Mark Hall (mhall{[at]}pentaho{[dot]}com)
 * @version $Revision: $
 */
@KFStep(name = "ScatterPlotMatrix", category = "Visualization",
  toolTipText = "Visualize datasets in a scatter plot matrix",
  iconPath = KFGUIConsts.BASE_ICON_PATH + "ScatterPlotMatrix.gif")
public class ScatterPlotMatrix extends BaseSimpleDataVisualizer {

  private static final long serialVersionUID = -2033576643553187310L;

  /**
   * When running in a graphical execution environment a step can make one or
   * more popup Viewer components available. These might be used to display
   * results, graphics etc. Returning null indicates that the step has no such
   * additional graphical views. The map returned by this method should be keyed
   * by action name (e.g. "View results"), and values should be fully qualified
   * names of the corresponding StepInteractiveView implementation. Furthermore,
   * the contents of this map can (and should) be dependent on whether a
   * particular viewer should be made available - i.e. if execution hasn't
   * occurred yet, or if a particular incoming connection type is not present,
   * then it might not be possible to view certain results.
   *
   * Viewers can implement StepInteractiveView directly (in which case they need
   * to extends JPanel), or extends the AbstractInteractiveViewer class. The
   * later extends JPanel, uses a BorderLayout, provides a "Close" button and a
   * method to add additional buttons.
   *
   * @return a map of viewer component names, or null if this step has no
   *         graphical views
   */
  @Override
  public Map getInteractiveViewers() {
    Map views = new LinkedHashMap();

    if (m_data.size() > 0) {
      views.put("Show plots",
        "weka.gui.knowledgeflow.steps.ScatterPlotMatrixInteractiveView");
    }

    return views;
  }
}