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:
Error:
![image](https://forum-cdn.knime.com/uploads/default/original/3X/b/2/b22aca047459fc9cd4c8f61723695c578d399155.png)
Can you please help?
@Prashaant0604 welcome to the KNIME forum.I think you will have to create a list instead of a string:
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Hello @mlauber71,
I have managed to make it work ![:smiley: :smiley:](https://forum-cdn.knime.com/images/emoji/twitter/smiley.png?v=12)
The solution was in the node for “Group by”.
It should be in “List” as per below:
Thank you for your help anyways ![:+1: :+1:](https://forum-cdn.knime.com/images/emoji/twitter/+1.png?v=12)
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