Marco Riani, Professor of Statistics

      Univ. of Parma (ITALY)

MATLAB ROUTINES
Loyalty cards data: video

Loyalty cards dataset: an analysis based on robust dynamic linking and brushing

This movie shows how the forward search can be used to decide whether and how to transform the data. The data in the example consist of 509 observations on the behaviour of customers with loyalty cards from a supermarket chain in Northern Italy. The response (y) is the amount in euros spent at the shop over six months and the explanatory variables are: X1, the number of visits to the supermarket in the six month period; X2, the age of the customer and, X3, the number of members of the customer's family.

To find out more about this dataset please see Atkinson and Riani (2006), JCGS

To download the movie (Quick time format)

[MATLAB main page inside www.riani.it]