"Finding Item Sets with FPGrowth"

User: "cpc2"
New Altair Community Member
Updated by Jocelyn
Hi,
I have some trouble using the FPGrowth Operator. On some of my Data it works perfectly fine. But I have one particular table where I have a big number of objects, and only a few itemsets. On that table FPGrowth isnt able to find any item sets at all which is weird because I activated the find_min_number_of_itemsets flag and 100 Itemsets to find.
My question is:
Is there a support value when the process to find_min_number_of_itemsets terminates (like 0.0001) or does it definetely discover something if theres any itemset more often then 1x?

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    User: "land"
    New Altair Community Member
    Hi,
    the lower limit is set to 0.06 for some reason I don't know. So it stops even if it didn't find the desired number of item sets but the support reached this limit. I would suggest lowering the threshold manually, that should solve your problem.

    Greetings,
     Sebastian
    User: "cpc2"
    New Altair Community Member
    OP
    Thanks that helped me a lot.
    Btw. by Treshhold do you mean the min_support value ?
    User: "land"
    New Altair Community Member
    Hi,
    yes, this I meant :)

    Greetings,
      Sebastian