Growth of Tammar Wallabies

Keywords: growth curves, random effects

Description

The data give growth measurements on Tammar wallabies (Macropus eugenii). Each line is a set of measurements on an animal at a particular time. Most lengths are in tenths of millimetres. The data from some animals is very fragmentary.


	Variable		Description

	Anim		Animal number
	Sex		1=male, 2=female
	Loca		Location of animal
	Leng		Length of animal (tenths of a millimetre)
	Head		Head length
	Ear		Ear Length
	Arm		Arm length
	Leg		Leg length
	Pres		Pes (foot) length
	Tail		Tail length
	Weight		Weight (tenths of a gram)
	Age		Age in days from birth

Download

Data file (tab-delimited text)

Source

Data courtesy of Dr Jeff Wood, CSIRO Biometrics Unit INRE, Canberra.

Mallon, G. (1994). Mixed Linear Models and Applications. Honours Thesis, Department of Mathematics University of Queensland.

Data cleaning and corrections by Professor Heike Hofmann, Department of Statistics, Iowa State University, 13 February 2008.

Analysis

For his Honours Project, Geoff Mallon used the data to illustrate growth curves with random effect coefficients, using PROC MIXED in SAS.