private static int[] getPositivesAndNegatives(String distinctValue,
			String attribute, ArrayList<HashMap<String, String>> examples) {
		int[] pn = new int[2];
		for (HashMap<String, String> example : examples) {
			if (attribute == null
					|| example.get(attribute).equals(distinctValue)) {
				if (example.get("Goal").equals("Yes")) {
					pn[0]++;
				} else {
					pn[1]++;
				}
			}
		}
		return pn;
	}