In retail, affinity analysis is used to perform market basket analysis, in which retailers seek to understand the purchase behavior of customers.

Binding data were analyzed using the Affinity Analysis Software as described before [ 34 35 ] .

Affinity analysis is a data analysis and data mining technique that discovers co-occurrence relationships among activities performed by (or recorded about) specific individuals or groups.

For example, a panel of DNA smart aptamers has been recently used to develop affinity analysis of proteins with ultra-wide dynamic range of measured concentrations.

Amazon uses affinity analysis for cross-selling when it recommends products to people based on their purchase history and the purchase history of other people who bought the same item.