Hello All, I need help using the Association Rule Learner (Borgelt). After using the Group By node to list each transaction and its stock code (concatenate in the group by node). I am getting an error with the Association Rule Learner (Borgelt) node which states “No transaction column available”. Group by node: [image] Error: [image] Can you please help?

Hello @mlauber71 , I have managed to make it work :smiley: The solution was in the node for “Group by”. It should be in “List” as per below: [image] Thank you for your help anyways :+1:

@Prashaant0604 welcome to the KNIME forum.I think you will have to create a list instead of a string : [image] Association rule for A -> B, but not the other way around KNIME Analytics Platform You might want to take a look at this approach: https://www.knime.com/self-tuning-association-rules-for-knime I have integrated this in a collection of Rule Learners (still looking for a good example to demonstrate) [IMG_3559]

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Urgent: Association Rule Learner (Borgelt)

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mlauber71 April 7, 2023, 9:00am 2

@Prashaant0604 welcome to the KNIME forum.I think you will have to create a list instead of a string: