I am trying to use apriori() on this dataset. After cleaning it, I made all attributes categorical with as.factor(). Then I uset these instruction:
chocolate_rules <- apriori(chocolateApriori, parameter=list(minlen=3, supp=0.1, conf=0.7), appearance=list(default="lhs", rhs=c("RatFactor=1", "RatFactor=2", "RatFactor=3", "RatFactor=4", "RatFactor=5")))
where RatFactor is categorial rounded "Rating" from the original dataset (and has only 5 possible values).
It seems to work, but when I call "chocolate-rules" the result is set of 0 rules. Can you explain me why? Or can you help me getting another result?