Lower support rendered in results window than Minimum Support set in FPGrowth node

anneanne MemberPosts:1Learner I
Hi there, I'm new here! Not sure if I am using the right format to ask my question, so please be patient with me.:)

I get an output from FP Growth and Create Association Rules I struggle to interpret. When I set the support to 0.2, I get individual values in the Support column which are much lower. Also, why would it list Support for items that stand alone? Isn't the whole point of finding associations that there be more than one item?

<参数键=“编码”值= "系统" / >
<参数键= " max_items_per_itemset" value="6"/>
< connect from_op="Retrieve transactions_binary" from_port="output" to_op="Select Attributes" to_port="example set input"/>
< connect from_op="Select Attributes" from_port="example set output" to_op="Numerical to Binominal" to_port="example set input"/>
< connect from_op="Numerical to Binominal" from_port="example set output" to_op="FP-Growth" to_port="example set"/>
< connect from_op="FP-Growth" from_port="example set" to_port="result 2"/>
< connect from_op="FP-Growth" from_port="frequent sets" to_op="Create Association Rules" to_port="item sets"/>
< connect from_op="Create Association Rules" from_port="rules" to_port="result 1"/>
< connect from_op="Create Association Rules" from_port="item sets" to_port="result 3"/>

Answers

  • sgenzersgenzer Administrator, Moderator, Employee, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM ModeratorPosts:2,959Community Manager
    hi@anneI pinged some of the folks in the office to see if we can get you an answer here...please be patient!

    Scott

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