Mandel  R Documentation 
Contrived Collinear Data
Description
The Mandel
data frame has 8 rows and 3 columns.
Usage
Mandel
Format
This data frame contains the following columns:
 x1

first predictor.
 x2

second predictor.
 y

response.
Source
Mandel, J. (1982) Use of the singular value decomposition in regression analysis. The American Statistician 36, 15–24.
References
Fox, J. (2016) Applied Regression Analysis and Generalized Linear Models, Third Edition. Sage.