Statistical summary measure for "loyalty"

#1
Hi,

Not sure this is the right forum for questions like this, but I give it a try :)

I am selling Apples, Oranges, Bananas and Pears.

Now I want to do analysis of my customer, I am looking for a summary measure for each customer that shows me how loyal customer is for within each group.

example
Customer A bought 10 apples, 10 oranges and 10 bananas
Customer B bought 25 Apples.

Measure would give me a high value for Customer A while a low for Customer B.
 

rogojel

TS Contributor
#2
hi,
why not simply count how many times each customer bought something? That would give A a score of 3 and B a score of 1.

regards
 
#3
Hi,

Thanks for your reply.

Customer B have bought 25 items and customer A 30. I am looking for measure of variance for activity between the groups.
 

rogojel

TS Contributor
#4
hi,
that would be questionable measure of loyalty imo. If I drop in to a store once in my lifetime and just happen to buy many items I should by no means be counted as a loyal customer. If I bought my cigarettes every week in the same store I should be, dont you think?

regards