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asbio (version 1.9-2)

veneer: 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)

Arguments

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