Key Metrics Calculated
Lift Ratio (Product Affinity)
Lift = P(A and B) / [P(A) x P(B)]
Support (Co-occurrence)
Support = Transactions with Both / Total Transactions
Confidence (Conversion)
Confidence = Transactions with Both / Transactions with A
Lift > 1 = Products bought together more than by chance
Higher lift = stronger affinity = better bundling opportunity