FP-GROWTH Itemset - one of the items is oversupported

Problem solved by converting TRUE/FALSE in excel file to 0 and 1 and then converting numerical to binomial in RM.

I have another question though:) In the Associations Rule operator, I'm setting the min. confidence at 0.15, but in the results, I don't see the rules between 0.15 and 0.2. I see those rules if I set min confidence to 0.1. Why is this happening?

 

 

The same happened to me regarding the min confidence parameter.

Hi @bernardo_pagnon, could you share the sample data and process for us to investigate the issues? I tried to re-produce the bug by testing the template under //Samples/Templates/Market Basket Analysis/Market basket analysis. With a modified min confidence from 0.1 to 0.2, the association rules are updated correctly. BTW I am using 9.6. Thanks

Sure, there it is. I am using the Supermarket_extracted file, available at http://rapidminerbook.com/

The reason is that you enabled on the "checkbox find min number of itemsets:"
If you keep the same high threshold on support but uncheck the option 


You should get an updated frequency items (empty) in the result view.

More info to cover the details of the min num of itemsets can be found here
https://docs.rapidminer.com/latest/studio/operators/modeling/associations/fp_growth.html

hello @bernardo_pagnon I will also add that the online http://rapidminerbook.com/ is very out-of-date and has not been maintained in years. I would strongly recommend using the RapidMiner Academy instead.

oh you're a professor? Let me change your rank and add you to the University Professor Stable. It has many KB pages including lists of books, etc..

Why didn't you tell us?

Scott