SASmixed (version 0.1-7)

SIMS: Second International Mathematics Study data

Description

The SIMS data frame has 3691 rows and 3 columns.

source

Littel, R. C., Milliken, G. A., Stroup, W. W., and Wolfinger, R. D. (1996), SAS System for Mixed Models, SAS Institute (section 7.2.2)

Kreft, I. G. G., De Leeuw, J. and Var Der Leeden, R. (1994), ``Review of five multilevel analysis programs: BMDP-5V, GENMOD, HLM, ML3, and VARCL'', American Statistician, 48, 324--335.

Examples

data(SIMS)
fm1SIMS <- lme(Gain ~ Pretot, data = SIMS, 
    random = ~ Pretot | Class, control = list(msVerbose = TRUE))
summary(fm1SIMS)              # compare to output 7.4, p. 262
VarCorr(fm1SIMS)
anova(fm1SIMS)
intervals( fm1SIMS )