R: Meat data from Preece (1982, Table 4)

Meat	R Documentation

Meat data from Preece (1982, Table 4)

Description

This dataset presents 20 paired data corresponding to the percentage of fat in samples of meat using two different methods: AOAC and Babcock.

Usage

data(Meat)

Format

A dataframe with 20 rows and 3 columns:

[,1]	AOAC	numeric	percentage of fat
[,2]	Babcock	numeric	percentage of fat
[,3]	MeatType	factor	meat type

Source

Tippett, L.H.C. (1952) Technological Applications of Statistics. Williams and Norgate: London.

References

Preece, D.A. (1982) t is for trouble (and textbooks): a critique of some examples of the paired-samples t-test. The Statistician, 31 (2), 169-195.

Examples

data(Meat)

# Presence of clusters or...
with(Meat,plot(paired(AOAC,Babcock)))

# group effect according to Meat type?
with(Meat,plot(paired(AOAC,Babcock),group=MeatType))
with(Meat,plot(paired(AOAC,Babcock),group=MeatType,facet=FALSE))