Error node "Association Rule Learner (Borgelt)"

Hello! I’m trying to perform a Market Basket Analysis using transactional data. These are the steps:

  1. Import data set
  2. Filter columns I don’t need
  3. Group Product IDs by Order ID
  4. Use the node Cell splitter
  5. Use the node Association Rule Learner (Borgelt)
    When I execute the fifth step, this is the error I see:

ERROR Association Rule Learner (Borgelt) 2:5 Execute failed: External program failed. Output: C:\Program Files\KNIME\plugins\org.knime.ext.itemset_4.0.0.v201905311239\resources\executables\win\x86_64\apriori.exe - find frequent item sets with the apriori algorithm
version 6.22 (2016.04.09) © 1996-2016 Christian Borgelt
reading C:\Users\Silvio\AppData\Local\Temp\knime_KNIME_project535627\isInput3702143660904263313.txt … [19471 item(s), 25035 transaction(s)] done [0.01s].

C:\Program Files\KNIME\plugins\org.knime.ext.itemset_4.0.0.v201905311239\resources\executables\win\x86_64\apriori.exe: no (frequent) items found

Can anybody explain to me what it is wrong with this? Thank you in advance

maybe your minimums in the settings are too high so that no frequent items can be found. That would be my guess based on the last line of the output you posted.
Kind regards


Thank you Alexander. Fixing some parts of the node configuration, actually the output is an empty table, so your conclusion is probably correct. Furthermore, using another data set the node seems working properly, so I think the problem rely on the data set I’m using.


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