// 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;
}
public void addValue(long x, double y) {
// calculate the bar in which this value should go
int bar = (int) (x / barsize);
double Y = y;
if (ysum.containsKey(bar)) {
double newyvalue = Y + ysum.get(bar);
long newxvalue = x + xsum.get(bar);
Integer newcount = count.get(bar) + 1;
ysum.put(bar, newyvalue);
xsum.put(bar, newxvalue);
count.put(bar, newcount);
Vector<Double> barvalues = values.get(bar);
barvalues.add(Y);
values.put(bar, barvalues);
} else {
ysum.put(bar, Y);
xsum.put(bar, x);
count.put(bar, 1);
Vector<Double> barvalues = new Vector<Double>();
barvalues.add(Y);
values.put(bar, barvalues);
}
}