Example: CuSumStatus Chart
A process is monitored using the CuSumStatus control chart. The solid red bars indicate the process is out-of-control. The hollow green bars indicate that the process is in control. The data is from NIST Engineering Statistics Handbook: CuSumStatus Control Charts
. This class can be used either as an applet or as an application.
import com.imsl.chart.*;
import com.imsl.stat.Summary;
import com.imsl.chart.qc.CuSumStatus;
public class CuSumStatusEx1 extends javax.swing.JApplet {
static private final double data[] = {
52.0, 47.0, 53.0, 49.3, 50.1, 47.0,
51.0, 50.1, 51.2, 50.5, 49.6, 47.6,
49.9, 51.3, 47.8, 51.2, 52.6, 52.4,
53.6, 52.1
};
public void init() {
Chart chart = new Chart(this);
JPanelChart panel = new JPanelChart(chart);
getContentPane().add(panel, java.awt.BorderLayout.CENTER);
setup(chart);
}
private void setup(final Chart chart) {
AxisXY axis = new AxisXY(chart);
double mean = Summary.mean(data);
double slackValue = 0.5;
CuSumStatus cusum = new CuSumStatus(axis, data, mean, slackValue);
cusum.getBarPlus().getBarSet(0,0).setFillType(cusum.FILL_TYPE_NONE);
cusum.getBarMinus().getBarSet(0,0).setFillType(cusum.FILL_TYPE_NONE);
cusum.getBarPlus().getBarSet(0,0).setFillOutlineColor("green");
cusum.getBarMinus().getBarSet(0,0).setFillOutlineColor("green");
}
public static void main(String argv[]) {
JFrameChart frame = new JFrameChart();
new CuSumStatusEx1().setup(frame.getChart());
frame.setVisible(true);
}
}
Output
Link to Java source.