Is the code block itemset.count(item) < length - 1 necessary in apriori_algorithm.py?

[phanngoctuan1990]

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Hi,

I noticed the following code in apriori_algorithm.py:

if item not in itemset or itemset.count(item) < length - 1:

From my testing with standard datasets (where each item appears at most once in an itemset), the block or itemset.count(item) < length - 1 never seems to be triggered. Is this condition necessary, or could it be removed for cleaner code?

Thank you!

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