def create_candidate_pairs(self,
frequentItems: list,
bitVector: BitVector,
num=1) -> dict:
all_pairs = itertools.combinations(frequentItems,
2) # make pairs from frequent item
candidate_pairs = dict()
for pair in all_pairs:
if bitVector.get_bit(
PCY.hash_pair(pair, num) % self.size_of_bucket):
candidate_pairs[pair] = 0
return candidate_pairs
