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wolfinger – Growth curve study on rats

Description

wolfinger recorded the weekly body weights of three treatment groups of rats.

Usage

wolfinger

To load the file into ASReml-R and view the contents use the commands:

library(asreml)
data(package="asreml")
data("wolfinger")
View(wolfinger)
Format
A data frame with 6 columns and 27 rows:
Treatment A factor with 3 levels
wt0 Body weight at week 1
wt1 Body weight at week 2
wt2 Body weight at week 3
wt3 Body weight at week 4
wt4 Body weight at week 5
Details

A total of 27 rats was divided randomly into 3 groups of 10, 7 and 10, respectively. Group 1 were kept as a control, group 2 had thyroxin and group 3 had thiouracil added to their drinking water. Five weekly measurements were taken on each individual.

References

Box GEP (1950). “Analysis of Growth and Wear Curves.” Biometrics, 6, pp. 362-389.

Updated on January 24, 2019

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