nlme (version 3.1-130)

bdf: Language scores

Description

The bdf data frame has 2287 rows and 25 columns of language scores from grade 8 pupils in elementary schools in The Netherlands.

Usage

data(bdf)

Format

Source

http://stat.gamma.rug.nl/snijders/multilevel.htm, the first edition of http://www.stats.ox.ac.uk/~snijders/mlbook.htm.

References

Snijders, Tom and Bosker, Roel (1999), Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling, Sage.

Examples

summary(bdf)

## More examples, including lme() fits  reproducing parts in the above
## book, are available in the R script files
system.file("mlbook", "ch04.R", package ="nlme") # and
system.file("mlbook", "ch05.R", package ="nlme")