association rule mining problem/ absolute number or percentage

[gmaggie]

Hi I wonder whether someone can tell me what is the difference between absolute number and percentage in association rule mining item set setting section.
It seems that if i don’t choose to use absolute number, I will run into errors: node created an empty data table.

Thanks in advance!
Maggie

[gmaggie]

If anyone know where I can help detailed explanations of these parameters on Knime, let me know. Thanks

[ScottF]

Here’s an older post from our site on the Association Rule Learner (Borgelt) node that you may find helpful:

https://www.knime.com/knime-applications/market-basket-analysis-and-recommendation-engines

The absolute number / percentage option applies to the minimum support, which itself is described in more detail in the above article. Hope that helps!