001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.jmathplot; 025 026 import java.awt.BorderLayout; 027 028 import org.math.plot.Plot2DPanel; 029 import org.ujmp.core.Matrix; 030 031 public class JMathPlotHistogramPanel extends AbstractJMathPlotPanel { 032 private static final long serialVersionUID = 6167298417945009767L; 033 034 private final int bins = 10; 035 036 public JMathPlotHistogramPanel(Matrix matrix) { 037 super(matrix); 038 } 039 040 041 public void repaintUI() { 042 Matrix matrix = getMatrix(); 043 Plot2DPanel panel = new Plot2DPanel(); 044 for (int c = 0; c < matrix.getColumnCount(); c++) { 045 double[] y = new double[(int) matrix.getRowCount()]; 046 for (int r = 0; r < matrix.getRowCount(); r++) { 047 y[r] = matrix.getAsDouble(r, c); 048 } 049 String colName = matrix.getColumnLabel(c); 050 colName = colName == null ? "Column " + c : colName; 051 panel.addHistogramPlot(colName, y, bins); 052 } 053 panel.setAxisLabels(new String[] { "Value", "Frequency" }); 054 setLayout(new BorderLayout()); 055 panel.addLegend("SOUTH"); 056 add(panel, BorderLayout.CENTER); 057 setPanel(panel); 058 getParent().repaint(); 059 } 060 061 }