protected void plotScatterDiagram() {
// plot sample as one dimensional scatter plot and Gaussian
double xmax = 5.;
double xmin = -5.;
DatanGraphics.openWorkstation(getClass().getName(), "E3Min_1.ps");
DatanGraphics.setFormat(0., 0.);
DatanGraphics.setWindowInComputingCoordinates(xmin, xmax, 0., .5);
DatanGraphics.setViewportInWorldCoordinates(-.15, .9, .16, .86);
DatanGraphics.setWindowInWorldCoordinates(-.414, 1., 0., 1.);
DatanGraphics.setBigClippingWindow();
DatanGraphics.chooseColor(2);
DatanGraphics.drawFrame();
DatanGraphics.drawScaleX("y");
DatanGraphics.drawScaleY("f(y)");
DatanGraphics.drawBoundary();
double xpl[] = new double[2];
double ypl[] = new double[2];
// plot scatter diagram
DatanGraphics.chooseColor(1);
for (int i = 0; i < y.length; i++) {
xpl[0] = y[i];
xpl[1] = y[i];
ypl[0] = 0.;
ypl[0] = .1;
DatanGraphics.drawPolyline(xpl, ypl);
}
// draw Gaussian corresponding to solution
int npl = 100;
xpl = new double[npl];
ypl = new double[npl];
double fact = 1. / (Math.sqrt(2. * Math.PI) * x.getElement(1));
double dpl = (xmax - xmin) / (double) (npl - 1);
for (int i = 0; i < npl; i++) {
xpl[i] = xmin + (double) i * dpl;
ypl[i] = fact * Math.exp(-.5 * Math.pow((xpl[i] - x.getElement(0)) / x.getElement(1), 2.));
}
DatanGraphics.chooseColor(5);
DatanGraphics.drawPolyline(xpl, ypl);
// draw caption
String sn = "N = " + nny;
numForm.setMaximumFractionDigits(3);
numForm.setMinimumFractionDigits(3);
String sx1 = ", x_1# = " + numForm.format(x.getElement(0));
String sx2 = ", x_2# = " + numForm.format(x.getElement(1));
String sdx1 = ", &D@x_1# = " + numForm.format(Math.sqrt(cx.getElement(0, 0)));
String sdx2 = ", &D@x_2# = " + numForm.format(Math.sqrt(cx.getElement(1, 1)));
caption = sn + sx1 + sx2 + sdx1 + sdx2;
DatanGraphics.setBigClippingWindow();
DatanGraphics.chooseColor(2);
DatanGraphics.drawCaption(1., caption);
DatanGraphics.closeWorkstation();
}
protected void plotParameterPlane() {
double x1 = x.getElement(0);
double x2 = x.getElement(1);
double dx1 = Math.sqrt(cx.getElement(0, 0));
double dx2 = Math.sqrt(cx.getElement(1, 1));
double rho = (cx.getElement(1, 0)) / (dx1 * dx2);
// prepare size of plot
double xmin = x1 - 2. * dx1;
double xmax = x1 + 2. * dx1;
double ymin = x2 - 2. * dx2;
double ymax = x2 + 2. * dx2;
DatanGraphics.openWorkstation(getClass().getName(), "E3Min_2.ps");
DatanGraphics.setFormat(0., 0.);
DatanGraphics.setWindowInComputingCoordinates(xmin, xmax, ymin, ymax);
DatanGraphics.setViewportInWorldCoordinates(.2, .9, .16, .86);
DatanGraphics.setWindowInWorldCoordinates(-.414, 1., 0., 1.);
DatanGraphics.setBigClippingWindow();
DatanGraphics.chooseColor(2);
DatanGraphics.drawFrame();
DatanGraphics.drawScaleX("x_1");
DatanGraphics.drawScaleY("x_2");
DatanGraphics.drawBoundary();
DatanGraphics.chooseColor(5);
// draw data point with errors (and correlation)
DatanGraphics.drawDatapoint(1, 1., x1, x2, dx1, dx2, rho);
DatanGraphics.chooseColor(2);
DatanGraphics.drawCaption(1., caption);
// draw confidence contour
double fcont = mllg.getValue(x) + .5;
int nx = 100;
int ny = 100;
double dx = (xmax - xmin) / (int) nx;
double dy = (ymax - ymin) / (int) ny;
MinLogLikeGaussCont mllgc = new MinLogLikeGaussCont();
// System.out.println(" x = " + x.toString() + ", mllgc.getValue(x) = " +
// mllgc.getValue(x.getElement(0), x.getElement(1)));
DatanGraphics.setBigClippingWindow();
DatanGraphics.chooseColor(1);
DatanGraphics.drawContour(xmin, ymin, dx, dy, nx, ny, fcont, mllgc);
// draw asymmetric errors as horiyontal and vertical bars
DatanGraphics.chooseColor(3);
double[] xpl = new double[2];
double[] ypl = new double[2];
for (int i = 0; i < 2; i++) {
if (i == 0) xpl[0] = x1 - dxasy[0][0];
else xpl[0] = x1 + dxasy[0][1];
xpl[1] = xpl[0];
ypl[0] = ymin;
ypl[1] = ymax;
DatanGraphics.drawPolyline(xpl, ypl);
}
for (int i = 0; i < 2; i++) {
if (i == 0) ypl[0] = x2 - dxasy[1][0];
else ypl[0] = x2 + dxasy[1][1];
ypl[1] = ypl[0];
xpl[0] = xmin;
xpl[1] = xmax;
DatanGraphics.drawPolyline(xpl, ypl);
}
DatanGraphics.closeWorkstation();
}