Mississippi {SASmixed} | R Documentation |
The Mississippi
data frame has 37 rows and 3 columns.
This data frame contains the following columns:
3
< 5
< 2
< 1
< 4
< 6
1
2
3
Littel, R. C., Milliken, G. A., Stroup, W. W., and Wolfinger, R. D. (1996), SAS System for Mixed Models, SAS Institute (Data Set 4.2).
str(Mississippi) if (require("lattice", quietly = TRUE, character = TRUE)) { dotplot(drop(influent:Type) ~ y, groups = Type, Mississippi) } if (require("lme4", quietly = TRUE, character = TRUE)) { options(contrasts = c(unordered = "contr.SAS", ordered = "contr.poly")) ## compare with output 4.1, p. 142 print(fm1Miss <- lmer(y ~ 1 + (1|influent), Mississippi)) ## compare with output 4.2, p. 143 print(fm1MLMiss <- update(fm1Miss, method = "ML")) ## BLUP's of random effects on p. 142 ranef(fm1Miss) ## BLUP's of random effects on p. 144 print(ranef(fm1MLMiss)) #intervals(fm1Miss) # interval estimates of variance components ## compare to output 4.8 and 4.9, pp. 150-152 print(fm2Miss <- lmer(y ~ Type+(1|influent), Mississippi, method = "REML")) print(anova(fm2Miss)) }