Market Basket Analysis using Association Rule Mining

  1. Support: Percentage of orders that contain the item set. In the example above, there are 11 orders in total, and {bread, butter} occurs in 3 of them.
  • Lift = 1; implies no relationship between X and Y (i.e., X and Y occur together only by chance)
  • Lift > 1; implies that there is a positive relationship between X and Y (i.e., X and Y occur together more often than random)
  • Lift < 1; implies that there is a negative relationship between X and Y (i.e., X and Y occur together less often than random)

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