IIS (version 1.0)

beer_head: Beer Head

Description

This data set contains the height of the initial head formation upon pouring, the percentage adhesion of the head, and the percentage collapse of the head 4 min after pouring for 20 bottles selected from two different production lots of beer as reported by Ault et al. (1967).

Usage

beer_head

Format

A list containing 2 data.frames (one for each of the two production lots). Each data.frame has 20 rows and 3 columns corresponding to the attributes for each bottle.

Examples

# NOT RUN {
data(beer_head)
summary(beer_head)
# }