/**
* Specifies the region in the 2D histogram with those attributes
*
* @param name The name of the histogram
* @param bx_start The x coordinate beginning
* @param bx_end The x coordinate end
* @param by_start The y coordinate beginning
* @param by_end The y coordinate end
* @return A 2D histogram with the entered specifications
*/
public H2D getRegion(String name, int bx_start, int bx_end, int by_start, int by_end) {
double xBinWidth = xAxis.getBinWidth(bx_start);
double newXMin = xAxis.min() + (xBinWidth * bx_start);
double newXMax = xAxis.min() + (xBinWidth * bx_end);
double yBinWidth = yAxis.getBinWidth(by_start);
double newYMin = yAxis.min() + (yBinWidth * by_start);
double newYMax = yAxis.min() + (yBinWidth * by_end);
H2D regHist =
new H2D(name, bx_end - bx_start, newXMin, newXMax, by_end - by_start, newYMin, newYMax);
double content = 0.0;
for (int y = by_start; y < by_end; y++) {
for (int x = bx_start; x < bx_end; x++) {
content = this.getBinContent(x, y);
regHist.setBinContent(x, y, content);
}
}
return regHist;
}
/**
* Creates a 1-D Histogram slice of the specified y Bin
*
* @param xBin the bin on the y axis to create a slice of
* @return a slice of the x bins on the specified y bin as a 1-D Histogram
*/
public H1D sliceX(int xBin) {
String name = "Slice of " + xBin + " X Bin";
double xMin = yAxis.min();
double xMax = yAxis.max();
int xNum = yAxis.getNBins();
H1D sliceX = new H1D(name, name, xNum, xMin, xMax);
for (int x = 0; x < xNum; x++) {
sliceX.setBinContent(x, this.getBinContent(xBin, x));
}
return sliceX;
}
/**
* Creates a 1-D Histogram slice of the specified x Bin
*
* @param yBin the bin on the x axis to create a slice of
* @return a slice of the y bins on the specified x bin as a 1-D Histogram
*/
public H1D sliceY(int yBin) {
String name = "Slice of " + yBin + " Y Bin";
double xMin = xAxis.min();
double xMax = xAxis.max();
int xNum = xAxis.getNBins();
H1D sliceY = new H1D(name, name, xNum, xMin, xMax);
for (int y = 0; y < xNum; y++) {
sliceY.setBinContent(y, this.getBinContent(y, yBin));
}
return sliceY;
}
/**
* Creates a projection of the 2D histogram onto the Y Axis, adding up all the x bins for each y
* bin
*
* @return a H1D object that is a projection of the Histogram2D object onto the y-axis
*/
public H1D projectionY() {
String name = "Y Projection";
double yMin = yAxis.min();
double yMax = yAxis.max();
int yNum = yAxis.getNBins();
H1D projY = new H1D(name, yNum, yMin, yMax);
double height = 0.0;
for (int y = 0; y < yAxis.getNBins(); y++) {
height = 0.0;
for (int x = 0; x < xAxis.getNBins(); x++) {
height += this.getBinContent(x, y);
}
projY.setBinContent(y, height);
}
return projY;
}
/**
* Creates a projection of the 2D histogram onto the X Axis, adding up all the y bins for each x
* bin
*
* @return a H1D object that is a projection of the Histogram2D object onto the x-axis
*/
public H1D projectionX() {
String name = "X Projection";
double xMin = xAxis.min();
double xMax = xAxis.max();
int xNum = xAxis.getNBins();
H1D projX = new H1D(name, xNum, xMin, xMax);
double height = 0.0;
for (int x = 0; x < xAxis.getNBins(); x++) {
height = 0.0;
for (int y = 0; y < yAxis.getNBins(); y++) {
height += this.getBinContent(x, y);
}
projX.setBinContent(x, height);
}
return projX;
}