forward (version 1.0.3)

wool: Wool data

Description

Number of cycles to failure of samples of worsted yarn in a 33 experiment. The wool data frame has 27 rows and 4 columns.

Usage

data(wool)

Format

This data frame contains the following columns:

x1

factor levels: -1, 0, 1

x2

factor levels: -1, 0, 1

x3

factor levels: -1, 0, 1

y

cycles to failure a numeric vector

References

Atkinson, A.C. and Riani, M. (2000), Robust Diagnostic Regression Analysis, First Edition. New York: Springer, Table A.3