Mengembalikan RDD item yang dikelompokkan.

rdd = sc.parallelize([1, 1, 2, 3, 5, 8])
result = rdd.groupBy(lambda x: x % 2).collect()
sorted([(x, sorted(y)) for (x,y) in result])
# [(0, [2, 8]), (1, [1, 1, 3, 5])]
Ethercourt.ml