BeerTaste: BeerTaste: Tasting and Grading Beers

In thoree/stat340: Data and functions for BIAS at NMBU

BeerTaste: Tasting and Grading Beers

Description

This data contains results from a beer liking study where 34 persons tasted nine different beers. The consumers tasted three different types of beers with three levels of alcohol percentage. Each beer were graded a liking score from 1 to 7, where a score of 1 means that the consumer did not like the beer at all and a score of 7 means that the beer was very good.

Usage

BeerTaste

Format

A data frame with 34 observations (rows) and 12 variables (columns).

	Column name	Data type	Description	Values
[,1:9]	A1...SL3	integer	Liking scores for each beer	(1 - 7)
[,10]	AGE	factor	2 age groups: young and old consumers	(O, Y)
[,11]	Gen	factor	The gender of the consumer	(F, M)
[,12]	Pos	factor	If the consumer is student or worker	(S, W)

AGE has two levels: 'Y' for young consumers less than 40 years old and 'O' for consumers older than 40.

Three different types of beers:

A:	Ale (dark beer)
L:	Lager (light beer)
SL:	Strong lager

The numbers behind each of the characters, which represents the beer type, give the alcohol level for the beer. The higher the number, the higher alcohol level.

Examples

# The structure of the object
str(BeerTaste)

# Covariance matrix for female consumers
cov(BeerTaste[BeerTaste$Gen =="F", 1:9])

thoree/stat340 documentation built on June 30, 2024, 4:04 p.m.