I want to find the association for A (drinks, eg, coke, orange juice, milk…etc) to B (snacks, eg, chocolate bar, chips, …etc), that means when people buy drinks, what kind of snacks they will also buy, but not the other way around (NOT when people buy snacks, what kinds of drink they will also buy).
I have been using Association Rule (Borgelt) for this but feel not very effective as it will also find the association between all kinds of drinks and snacks. What nodes should be used or any setting in Borgelt that will limit the association of A -> B only but not all associations among As and Bs?