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)

Examples

data(Oxboys)
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