Market Basket

Introduction

Find rules of what tend to occur at the same time from transaction data.

How to Access?

You can access from 'Add' (Plus) button.

How to Use?

Column Selection

• Product (Subject Column) - Set a column to find rules for. If it's purchasing data, this should be a column of product names.

• Basket (Key Column) - Set a column to use as an id of transactions.

Parameters

• Minimum Item Length - Minimum number of items on the left-hand side of the rules to find.

• Maximum Item Length - Maximum number of items on the left-hand side of the rules to find.

• Selection of Minimum Support Value - How minimum support value is set. This can be one of the following.

  • Search Automatically - Automatically search a minimum support value that finds some rules.

  • Specify Value - Manually specify the minimum support value.

• Minimum Support Value - Minimum support value for the rules to find. Takes effect when "Specify Value" is chosen for "Selection of Minimum Support Value".

• Maximum Support Value - Maximum support value for the rules to find.

• Minimum Confidence Value - Minimum confidence value for the rules to find.

• Maximum Number of Items in a Basket - Maximum number of most frequent items in a basket to keep before running rule mining algorithm (Apriori algorithm). Less frequent items are dropped so that rule mining completes within reasonable time.

• Left Hand Side Items, Right Hand Side Items (Optional) - The default is NULL. What subjects should come to lhs or rhs.

Step-by-Step Tutorial with Grocery store data.

• Introduction to Association Rules (Market Basket Analysis) in R