Method append

src/org/opensourcephysics/display/Histogram.java:282–298

Append a value with number of occurrences to the Histogram. @param value @param numberOfoccurrences

(double value, double numberOfoccurrences)

	 * @param numberOfoccurrences
	 */
	public synchronized void append(double value, double numberOfoccurrences) {
		sum += numberOfoccurrences;
		int binNumber = hashCode(value);
		// Determine if there have previously been any occurrences for this bin
		Double occurrences = bins.get(Integer.valueOf(binNumber));
		if (occurrences == null) { // first occurence for this bin
			bins.put(Integer.valueOf(binNumber), new Double(numberOfoccurrences));
		} else {
			// need to put Objects in HashMap, but can only add doubles
			numberOfoccurrences += occurrences.doubleValue(); // increase occurrences for bin by numberOfoccurrences
			bins.put(Integer.valueOf(binNumber), new Double(numberOfoccurrences));
		}
		ymax = Math.max(numberOfoccurrences, ymax);
		xmin = Math.min(binNumber * binWidth + binOffset, xmin);
		xmax = Math.max(binNumber * binWidth + binWidth + binOffset, xmax);
		dataChanged = true;
	}

	/**
	 * Appends a value with 1 occurence.