What is market basket analysis? How would you do it in Python?

• Market basket analysis is the study of items that are purchased or grouped in a single transaction or multiple, sequential transactions.

• Understanding the relationships and the strength of those relationships is valuable information that can be used to make recommendations, cross-sell, up-sell, offer coupons, etc.

• Market Basket Analysis is one of the key techniques used by large retailers to uncover associations between items.

• It works by looking for combinations of items that occur together frequently in transactions.

• To put it another way, it allows retailers to identify relationships between the items that people buy.