| loyalty {fsdaR} | R Documentation |
Loyalty data
Description
The loyalty data 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;
X3, the number of members of the customers' family.
To find out more about this data set please see Atkinson and Riani (2006), JCGS
Usage
data("loyalty")Format
A data frame with 509 observations on the following 4 variables.
visitsthe number of visits to the supermarket in the six month period
agethe age of the customer
familythe number of members of the customers' family
amount_spentthe amount in euros spent at the shop over six months
Details
To find out more about this data set please see Atkinson and Riani (2006), JCGS
Source
The data are themselves a random sample from a larger database. The sample of 509 observations is available at http://www.riani.it/trimmed/.
References
Atkinson, A. and Riani, M (2006) Distribution Theory and Simulations for Tests of Outliers in Regression, Journal of Computational and Graphical Statistics, 15 2, pp 460–476.
Examples
data(loyalty)