Market Basket Analysis Basics

Kevin Feasel

2017-02-21

R

Leila Etaati has an introduction to market basket analysis with R:

For instance, imagine we have below transaction items from a shopping store  for last hours,

Customer 1: Salt, pepper, Blue cheese

Customer 2: Blue Cheese, Pasta, Pepper, tomato sauce

Customer 3: Salt, Blue Cheese, Pepperoni, Bacon, egg

Customer 4: water, Pepper, Egg, Salt

we want to know how many times customer purchase pepper and salt together
the support will be : from out four main transactions (4 customers), 2 of them purchased salt and pepper together. so the support will be 2 divided by 4 (all number of transaction.

Basket analysis is one way of building a recommendation engine:  if you’re buying butter, cream, and eggs, do you also want to buy sugar?

Related Posts

Economic Articles With Data Included

Sebastian Kranz has a Shiny app to help you find economic papers with included data: One gets some information about the size of the data files and the used code files. I also tried to find and extract a README file from each supplement. Most README files explain whether all results can be replicated with […]

Read More

Giving A Name To The R Pipe

John Mount noodles an idea from Hadley Wickham: I’d say this fails on at least two counts, the first “%then%” doesn’t seem grammatical (as d is a noun), and magrittr pipes can’t be associated with a new name (as they are implemented by looking for theirselves by name in captured unevaluated code). However, the wrapr dot arrow pipe can take on new names. […]

Read More

Categories

February 2017
MTWTFSS
« Jan Mar »
 12345
6789101112
13141516171819
20212223242526
2728