lmreg (version 1.2)

denim: Abrasion of denim jeans

Description

Effects of Laundering Cycles and denim treatment on edge abrasion of denim jeans (Card et al., 2006). Data simulated to match means/SDs.

Usage

data(denim)

Format

A data frame with 90 observations on the following 3 variables.

Laundry

Three levels of laundry cycles (1 = 0 cycle, 2 = 5 cycles, 3 = 25 cycles)

Denim

Three types of denim treatments (1 = pre-washed, 2 = stone-washed, 3 = enzyme washed)

Abrasion

abrasion score (lower score means higher damage)

Examples

# NOT RUN {
data(denim)
head(denim)
# }