Oxboys {nlme} | R Documentation |

## Heights of Boys in Oxford

### Description

The `Oxboys`

data frame has 234 rows and 4 columns.

### Format

This data frame contains the following columns:

- Subject
- an ordered factor giving a unique identifier for each boy in
the experiment
- age
- a numeric vector giving the standardized age (dimensionless)
- height
- a numeric vector giving the height of the boy (cm)
- Occasion
- an ordered factor - the result of converting
`age`

from a
continuous variable to a count so these slightly unbalanced
data can be analyzed as balanced.

### Details

These data are described in Goldstein (1987) as data on the
height of a selection of boys from Oxford, England versus a
standardized age.

### Source

Pinheiro, J. C. and Bates, D. M. (2000), *Mixed-Effects Models in
S and S-PLUS*, Springer, New York. (Appendix A.19)

[Package

*nlme* version 3.1-66

Index]