wolfinger {asreml} | R Documentation

## Growth curve study on rats

### Description

Weekly body weights of three treatment groups of rats.

### Usage

    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, 362–389.

[Package asreml version 4.1.0.176 Index]