hll+ example with merge

gistfile1.java

   for (int p = 10; p < 18; p++)
        {
            ICardinality[] hlls = new ICardinality[30];
            int ecount = 15000;
            int totalCount = ecount * 30;
            for (int j = 0; j < 30; j++)
            {
                hlls[j] = new HyperLogLogPlus(p, 25);
                for (int i = 0; i < ecount; i++)
                {
                    hlls[j].offer(UUID.randomUUID());
                }
            }
            HyperLogLogPlus total = new HyperLogLogPlus(p, 25);
            long estimate = total.merge(hlls).cardinality();
            double se = totalCount * (1.04 / Math.sqrt(Math.pow(2, p)));
            long expectedCardinality = totalCount;

            double error = (totalCount - estimate) / (double) totalCount;
            System.out.println("Expect estimate for p=" + p + " is " + estimate + " with error: " + error + " is between " + (expectedCardinality - (3 * se)) + " and " + (expectedCardinality + (3 * se)) + " mem:" + total.getBytes().length);
        }