/**
* shift
*
* <p>store the s and y vectors.
*/
private void shift() {
double[] nextS = null;
double[] nextY = null;
int listSize = sList.size();
if (listSize < m) {
nextS = new double[dim + 1];
nextY = new double[dim + 1];
}
if (nextS == null) {
nextS = sList.firstElement();
sList.remove(0);
nextY = yList.firstElement();
yList.remove(0);
roList.remove(0);
}
addMultInto(nextS, newW, w, -1);
addMultInto(nextY, newGrad, grad, -1);
double ro = ArrayUtils.dot(nextS, nextY);
sList.add(nextS);
yList.add(nextY);
roList.add(ro);
ArrayUtils.copy(newW, w);
ArrayUtils.copy(newGrad, grad);
iter++;
}
public void actionPerformed(final ActionEvent e) {
@SuppressWarnings("unchecked")
final Pair<String, Component> p = (Pair<String, Component>) cboDisplayType.getSelectedItem();
AbstractChart chart = null;
Dimension chartSize = null;
Stack<Rectangle2D> stack = null;
String saveTitle = null;
List<? extends FileFilter> filters = null;
if (p.getSecond() == scpLineChart) {
stack = stkLineChartZoom;
chart = pnlLineChart;
chartSize = new Dimension(1200, 400);
saveTitle = "Save Landscape Line Chart";
filters = FileSaver.fltGraphics;
} else if (p.getSecond() == scpHistogram) {
stack = stkHistogramZoom;
chart = pnlHistogram;
chartSize = new Dimension(1000, 1000);
saveTitle = "Save Landscape Histogram";
filters = FileSaver.fltGraphics;
} else {
saveTitle = "Save Landscape Raw Text";
filters = FileSaver.fltText;
}
if ((e.getSource() == cmdUnzoom) && (stack != null) && (chart != null)) {
final Rectangle2D viewport = stack.pop();
chart.setViewport(viewport);
checkEnabled(isEnabled());
} else if ((e.getSource() == cmdResetView) && (stack != null) && (chart != null)) {
chart.setViewport(stack.firstElement());
stack.clear();
checkEnabled(isEnabled());
} else if (e.getSource() == cmdSave) {
try {
final Pair<File, FileFilter> ff =
FileSaver.getSaveFile(getTopLevelAncestor(), saveTitle, filters);
if (ff == null) {
return;
}
if ((chart == null) || (chartSize == null)) {
FileSaver.saveText(txaRaw.getText(), ff.getFirst());
} else if (ff.getSecond() == FileSaver.epsFilter) {
final Writer w = new FileWriter(ff.getFirst());
w.write(chart.getEpsText(chartSize.width, chartSize.height));
w.flush();
w.close();
} else if (ff.getSecond() == FileSaver.pngFilter) {
ImageIO.write(chart.getImage(chartSize.width, chartSize.height), "png", ff.getFirst());
} else if (ff.getSecond() == FileSaver.jpgFilter) {
ImageIO.write(chart.getImage(chartSize.width, chartSize.height), "jpeg", ff.getFirst());
}
} catch (final IOException ex) {
Utility.logException(ex);
JOptionPane.showMessageDialog(
getTopLevelAncestor(), ex.getMessage(), "I/O Error", JOptionPane.ERROR_MESSAGE);
}
} else {
throw new IllegalArgumentException(e.getActionCommand());
}
}
/**
* get value
*
* @return
*/
private double getValue() {
double retVal = Double.MAX_VALUE;
if (prevVals.size() > m / 2) {
double prevVal = prevVals.firstElement();
if (prevVals.size() == m) {
prevVals.remove(0);
}
double averageImprovement = (prevVal - this.value) / prevVals.size();
double relAvgImpr = averageImprovement / Math.abs(this.value);
retVal = relAvgImpr;
} else {
if (DEBUG || verbose) {
stderr.println(" (wait for five iters) ");
}
}
prevVals.add(this.value);
return retVal;
}
