meka.gui.explorer.classify.ShowPrecisionRecall.java Source code

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Here is the source code for meka.gui.explorer.classify.ShowPrecisionRecall.java

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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 <http://www.gnu.org/licenses/>.
 */

/**
 * ShowPrecisionRecall.java
 * Copyright (C) 2015 University of Waikato, Hamilton, NZ
 */

package meka.gui.explorer.classify;

import weka.classifiers.evaluation.ThresholdCurve;
import weka.core.Instances;
import weka.core.Utils;
import weka.gui.visualize.ThresholdVisualizePanel;

/**
 * Allows the user to display the precision recall curves per label.
 *
 * @author FracPete (fracpete at waikato dot ac dot nz)
 * @version $Revision$
 */
public class ShowPrecisionRecall extends AbstractShowThresholdCurve {
    private static final long serialVersionUID = -1152575716154907544L;

    /**
     * Returns the name of the plugin. Used for the menu item text.
     *
     * @return          the name
     */
    @Override
    public String getName() {
        return "Show Precision-Recall";
    }

    /**
     * Returns the name of the default X column to display.
     *
     * @return              the name of the column
     */
    protected String getDefaultXColumn() {
        return ThresholdCurve.RECALL_NAME;
    }

    /**
     * Returns the name of the default Y column to display.
     *
     * @return              the name of the column
     */
    protected String getDefaultYColumn() {
        return ThresholdCurve.PRECISION_NAME;
    }

    /**
     * Creates a panel displaying the ROC data.
     *
     * @param data          the threshold curve data
     * @param title         the title of the plot
     * @return              the panel
     * @throws Exception    if plot generation fails
     */
    protected ThresholdVisualizePanel createPanel(Instances data, String title) throws Exception {
        ThresholdVisualizePanel result = super.createPanel(data, title);
        result.setROCString("PRC area: " + Utils.doubleToString(ThresholdCurve.getPRCArea(data), 3));
        result.setUpComboBoxes(result.getInstances());
        setComboBoxIndices(data, result);
        return result;
    }
}