veneer {asbio}

Veneer data from Littell et al. (2002)

Description

Four examples of each of five brands of a synthetic wool veneer material were subjected to a friction test and a measure of wear was determined for each experimental unit.

Usage

data(veneer)

Format

A data frame with 20 observations on the following 2 variables.

wear

a numeric vector

brand

a factor with levels ACME AJAX CHAMP TUFFY XTRA

Source

Littell, R. C., Stroup, W. W., and R. J. Freund (2002) SAS for Linear Models. John Wiley and Associates.