LambDataFactorial: LambDataFactorial: The Weight of Lamb Carcasses from One Farm

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

LambDataFactorial: The Weight of Lamb Carcasses from One Farm

Description

This is real data of carcase weight for 32 lambs as registered in the slaughterhouse. The data set represent a balanced fully crossed design with four factors, each with two levels.

Usage

LambDataFactorial

Format

A data frame with 32 observations (rows) and 5 variables (columns).

	Column name	Data type	Description	Values
[,1]	Carcase_weight	numeric	Carcase weight in kg	(14.7 - 24.8)
[,2]	Breed	factor	2 levels of sheep breeds	(NKS, NP)
[,3]	Maternal_age	factor	2 levels of mothers	(2+ litter, First litter)
[,4]	Twin	factor	2 levels of litter size	(2+ lambs, One lamb)
[,5]	Sex	factor	2 genders	(Female, Male)

• Maternal_age = “2+ litter” if the mother has given birth before.

• Twin = "2+ lambs" if there were two or more lambs in the litter.

Details

Carcasses from two Norwegian sheep breeds were observed: Norwegian white sheep (NKS) and Norwegian pelssau (NP).

This data was used in the Exam STAT210 H22.

Source

This is real data from "Sauekontrollen", a database administered by Animalia AS. All data are from the same farmer and are sampled in the same year. The data is provided by Lars Erik Gangsei.

Examples

# The structure of the object
str(LambDataFactorial)

# Weight based only on the sheep breed
boxplot(Carcase_weight ~ Breed, data = LambDataFactorial,
        col = c("azure", "coral"))

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