SASmixed (version 0.1-7)

BIB: Data from a balanced incomplete block design

Description

The BIB data frame has 24 rows and 5 columns.

source

Littel, R. C., Milliken, G. A., Stroup, W. W., and Wolfinger, R. D. (1996), SAS System for Mixed Models, SAS Institute (Data Set 5.4).

Details

These appear to be constructed data.

Examples

data(BIB)
options(
  contrasts = c(unordered = "contr.SAS", ordered = "contr.poly"))
coplot(y ~ x | Block, data = BIB, show = FALSE)
fm1BIB <- lme(y ~ Treatment * x, data = BIB, random = ~ 1 | Block)
summary(fm1BIB)   # compare with Output 5.7, p. 188
VarCorr(fm1BIB)
anova(fm1BIB)     # strong evidence of different slopes
fm2BIB <- lme(y ~ Treatment + x : Grp, data = BIB,
              random = ~ 1 | Block)
summary(fm2BIB)   # compare with Output 5.9, p. 193
VarCorr(fm2BIB)
anova(fm2BIB)