Methods for more details. Method functions can be written to handle specific S Version 3 classes of data. Classes that already have methods for this function include
"lm",
"aovlist", and
"formula".
ssType3(object, ...)
"lm",
"aovlist", or
"formula".
ssType3.formula for more details.
"ssType3".
Kennedy, W.J. and Gentle, J.E. (1980). Statistical Computing. New York: Marcel Dekker.
SAS Institute, Inc. (1978). Tests of Hypotheses in Fixed-Effects Linear Models. SAS Technical Report R-101. Cary, NC: SAS Institute, Inc.
SAS Institute, Inc. (1990). SAS/Stat User's Guide (Fourth Edition). Cary, NC: SAS Institute, Inc.
bakers <- data.frame(
Fat = factor(c(1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2,
3, 3, 3, 3, 3, 3, 3, 3)),
Surfactant = factor(c(
1, 1, 1, 2, 2, 2, 3, 3, 3,
1, 1, 1, 2, 2, 3, 3, 3, 3,
1, 1, 2, 2, 2, 2, 3, 3)),
Flour = factor(c(1, 2, 3, 1, 3, 4, 2, 3, 4, 2, 3, 4, 2,
4, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 2, 3)),
Volume = c(6.7, 4.3, 5.7, 7.1, 5.9, 5.6, 5.5, 6.4, 5.8,
5.9, 7.4, 7.1, 5.6, 6.8, 6.4, 5.1, 6.2, 6.3,
7.1, 5.9, 7.3, 6.6, 8.1, 6.8, 7.5, 9.1))
ssType3(Volume ~ Fat*Surfactant + Flour, data = bakers)