// Sorts labels from the mapping. We may get rid of this later perhaps.
String[] revisedLabels(HashMap map) {
// Sort labels
String[] labels = new String[map.size()];
labels = (String[]) (map.keySet().toArray(labels));
Arrays.sort(labels);
return labels;
}
// Returns the counts from the mapping, in the same order as the labels
double[] amounts(HashMap map, String[] revisedLabels) {
// Extract amounts
double[] amounts = new double[map.size()];
for (int i = 0; i < amounts.length; i++)
amounts[i] = ((Double) (map.get(revisedLabels[i]))).doubleValue();
return amounts;
}
// Takes objects and produces an object->count mapping
HashMap convertIntoAmountsAndLabels(Object[] objs) {
// Total the amounts
HashMap map = new HashMap();
for (int i = 0; i < objs.length; i++) {
String label = "null";
if (objs[i] != null) label = objs[i].toString();
if (map.containsKey(label))
map.put(label, new Double(((Double) (map.get(label))).doubleValue() + 1));
else map.put(label, new Double(1));
}
return map;
}