package umontreal.iro.lecuyer.charts;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.BoxAndWhiskerRenderer;
import org.jfree.data.statistics.DefaultBoxAndWhiskerCategoryDataset;
import java.util.Locale;
import java.util.Formatter;
import javax.swing.JFrame;
/**
* This class provides tools to create and manage box-and-whisker plots.
* Each {@link BoxChart} object is linked with a
* {@link umontreal.iro.lecuyer.charts.BoxSeriesCollection BoxSeriesCollection} data set.
*
*
* A boxplot is a convenient way of viewing sets of numerical data through their
* summaries: the smallest observation, first quartile (
* Q1 = x.25), median
* (
* Q2 = x.5), third quartile (
* Q3 = x.75), and largest observation.
* Sometimes, the mean and the outliers are also plotted.
*
*
* In the charts created by this class, the box has its lower limit at Q1
* and its upper limit at Q3. The median is indicated by the line inside the box,
* while the mean is at the center of the filled circle inside the box.
* Define the interquartile range as (Q3 - Q1).
* Any data observation which is more than
* 1.5(Q3 - Q1) lower than the first
* quartile or
* 1.5(Q3 - Q1) higher than the third quartile is considered an
* outlier. The smallest and the largest values that are not outliers are connected
* to the box with a vertical line or "whisker" which is ended by a horizontal line.
* Outliers are indicated by hollow circles outside the whiskers. Triangles
* indicate the existence of very far outliers.
*
*/
public class BoxChart extends CategoryChart {
protected void init (String title, String XLabel, String YLabel) {
// create the chart...
chart = ChartFactory.createBoxAndWhiskerChart (
title, // chart title
XLabel, // x axis label
YLabel, // y axis label
(DefaultBoxAndWhiskerCategoryDataset)dataset.getSeriesCollection(), // data
true // include legend
);
((CategoryPlot)chart.getPlot()).setRenderer(dataset.getRenderer());
// Initialize axis variables
initAxis();
}
protected void initAxis(){
YAxis = new Axis((NumberAxis)((CategoryPlot) chart.getPlot()).getRangeAxis(),
Axis.ORIENTATION_VERTICAL);
setAutoRange();
}
/**
* Initializes a new BoxChart instance with an empty data set.
*
*/
public BoxChart() {
super();
dataset = new BoxSeriesCollection();
init (null, null, null);
}
/**
* Initializes a new BoxChart instance with data data.
* title is a title, XLabel is a short description of the
* x-axis, and YLabel a short description of the y-axis.
* The input parameter data represents a set of plotting data.
* Only the first numPoints of data will
* be considered for the plot.
*
* @param title chart title.
*
* @param XLabel Label on x-axis.
*
* @param YLabel Label on y-axis.
*
* @param data point sets.
*
* @param numPoints Number of points to plot
*
*
*/
public BoxChart (String title, String XLabel, String YLabel,
double[] data, int numPoints) {
super();
dataset = new BoxSeriesCollection(data, numPoints);
init (title, XLabel, YLabel);
}
/**
* Initializes a new BoxChart instance with data data.
* title sets a title, XLabel is a short description of the
* x-axis, and YLabel is a short description of the y-axis.
* The input parameter data represents a set of plotting data.
*
* @param title chart title.
*
* @param XLabel Label on x-axis.
*
* @param YLabel Label on y-axis.
*
* @param data series of point sets.
*
*/
public BoxChart (String title, String XLabel, String YLabel,
double[]... data) {
super();
dataset = new BoxSeriesCollection(data);
init (title, XLabel, YLabel);
}
/**
* Adds a data series into the series collection. Vector data represents
* a set of plotting data.
*
* @param data point sets.
*
* @return Integer that represent the new point set's position in the JFreeChart BoxSeriesCollection object.
*
*/
public int add (double[] data) {
return add(data, data.length);
}
/**
* Adds a data series into the series collection. Vector data represents
* a set of plotting data. Only the first numPoints of
* data will be taken into account for the new series.
*
* @param data point set.
*
* @param numPoints number of points to add.
*
* @return Integer that represent the new point set's position in the JFreeChart BoxSeriesCollection object.
*
*/
public int add (double[] data, int numPoints) {
int seriesIndex = getSeriesCollection().add(data, numPoints);
initAxis();
return seriesIndex;
}
/**
* Returns the chart's dataset.
*
* @return the chart's dataset.
*
*/
public BoxSeriesCollection getSeriesCollection() {
return (BoxSeriesCollection)dataset;
}
/**
* Links a new dataset to the current chart.
*
* @param dataset new dataset.
*
*
*/
public void setSeriesCollection (BoxSeriesCollection dataset) {
this.dataset = dataset;
}
/**
* Sets fill to true, if the boxes are to be filled.
*
* @param fill true if the boxes are filled
*
*
*/
public void setFillBox (boolean fill) {
((BoxAndWhiskerRenderer)dataset.getRenderer()).setFillBox(fill);
}
/**
* Displays chart on the screen using Swing.
* This method creates an application containing a chart panel displaying
* the chart. The created frame is positioned on-screen, and displayed before
* it is returned. The circle represents the mean, the dark line inside the box
* is the median, the box limits are the first and third quartiles,
* the lower whisker (the lower line outside the box) is the first decile,
* and the upper whisker is the ninth decile. The outliers, if any, are
* represented by empty circles, or arrows if outside the range bounds.
*
* @param width frame width.
*
* @param height frame height.
*
* @return frame containing the chart.;
*
*/
public JFrame view (int width, int height) {
JFrame myFrame;
if(chart.getTitle() != null)
myFrame = new JFrame ("BoxChart from SSJ : " + chart.getTitle().getText());
else
myFrame = new JFrame ("BoxChart from SSJ");
ChartPanel chartPanel = new ChartPanel (chart);
chartPanel.setPreferredSize (new java.awt.Dimension(width, height));
myFrame.setContentPane (chartPanel);
myFrame.pack ();
myFrame.setDefaultCloseOperation (JFrame.DISPOSE_ON_CLOSE);
myFrame.setLocationRelativeTo (null);
myFrame.setVisible (true);
return myFrame;
}
/**
* NOT IMPLEMENTED.
*
* @param width Chart's width in centimeters.
*
* @param height Chart's height in centimeters.
*
* @return LaTeX source code.
*
*/
public String toLatex (double width, double height) {
throw new UnsupportedOperationException(" NOT implemented yet");
/*
double yunit;
double[] save = new double[4];
if(dataset.getSeriesCollection().getColumnCount() == 0)
throw new IllegalArgumentException("Empty chart");
//Calcul des parametres d'echelle et de decalage
double YScale = computeYScale(YAxis.getTwinAxisPosition());
yunit = height / ( (Math.max(YAxis.getAxis().getRange().getUpperBound(), YAxis.getTwinAxisPosition()) * YScale) - (Math.min(YAxis.getAxis().getRange().getLowerBound(), YAxis.getTwinAxisPosition()) * YScale) );
//taille d'une unite en y et en cm dans l'objet "tikzpicture"
Formatter formatter = new Formatter(Locale.US);
// Entete du document
formatter.format("\\documentclass[12pt]{article}%n%n");
formatter.format("\\usepackage{tikz}%n\\usetikzlibrary{plotmarks}%n\\begin{document}%n%n");
if(chart.getTitle() != null)
formatter.format("%% PGF/TikZ picture from SSJ : %s%n", chart.getTitle().getText());
else
formatter.format("%% PGF/TikZ picture from SSJ %n");
formatter.format("%% YScale = %s, YShift = %s%n", YScale, YAxis.getTwinAxisPosition());
formatter.format("%% and thisFileYValue = (originalSeriesYValue+YShift)*YScale%n%n");
if (chart.getTitle() != null)
formatter.format("\\begin{figure}%n");
formatter.format("\\begin{center}%n");
formatter.format("\\begin{tikzpicture}[y=%scm]%n", yunit);
formatter.format("\\footnotesize%n");
if(grid)
formatter.format("\\draw[color=lightgray] (%s) grid[ystep=%s] (%s);%n",
(Math.min(YAxis.getAxis().getRange().getLowerBound(), YAxis.getTwinAxisPosition())-YAxis.getTwinAxisPosition()) * YScale,
ystepGrid*YScale,
(Math.max(YAxis.getAxis().getRange().getUpperBound(), YAxis.getTwinAxisPosition())-YAxis.getTwinAxisPosition()) * YScale );
formatter.format("%s", YAxis.toLatex(YScale) );
formatter.format("%s", dataset.toLatex(YScale, YAxis.getTwinAxisPosition(), YAxis.getAxis().getLowerBound(), YAxis.getAxis().getUpperBound()));
formatter.format("\\end{tikzpicture}%n");
formatter.format("\\end{center}%n");
if (chart.getTitle() != null) {
formatter.format("\\caption{");
formatter.format(chart.getTitle().getText());
formatter.format("}%n\\end{figure}%n");
}
formatter.format("\\end{document}%n");
return formatter.toString();
*/
}
}
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