Hi All Hoping someone can help me with the "transactions" object. I am struggling to get my data in. I know the answer is in the help somewhere I'm sure, I just cannot find it. Essentially, I have data in this format (though I can change it if it particularly unsuitable) Transaction_id, store , salesman, date_time , items 1 , waterfront, john , 2008-01-01 12:00:00, hardware games audio_visual photo 2 , sandton , lisa , 2008-01-02 12:00:00, photo 3 , waterfront, peter , 2008-01-01 12:00:00, hardware photo How do I get this into a transactions data type? I wish to get all the apriori() stats for each salesman, and see who's good at selling add-ons and up-selling (and how salespeople react when certain items are discounted). For this analysis, I need to filter on salesman and date_time. I realise that the EPubs dataset in the arules package has a few extra fields apart from the transaction_ids and the actual items, but I can't figure out how to get the additional fields (in my case store, salesman, date_time) in. (PS: it would not be too hard for me to binary-ise the items fields if this would help.) [[alternative HTML version deleted]]