Oxboys                 package: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)

