Growth curves of pigs in a 3x3 factorial experiment

Description

The dietox data frame has 861 rows and 7 columns.

Usage

data(dietox)

Format

This data frame contains the following columns:

Weight

a numeric vector

Feed

a numeric vector

Time

a numeric vector

Pig

a numeric vector

Evit

a numeric vector

Cu

a numeric vector

Litter

a numeric vector

Source

Lauridsen, C., H<c3><b8>jsgaard, S.,S<c3><b8>rensen, M.T. C. (1999) Influence of Dietary Rapeseed Oli, Vitamin E, and Copper on Performance and Antioxidant and Oxidative Status of Pigs. J. Anim. Sci.77:906-916

Examples

data(dietox)
dietox$Cu     <- as.factor(dietox$Cu)
gee01 <- geeglm (Weight ~ Time + Cu + Cu * Time, id =Pig, data = dietox,
         family=gaussian,corstr="ex")

mf <- formula(Weight~Cu*(Time+I(Time^2)+I(Time^3)))
gee1 <- geeglm(mf, data=dietox, id=Pig, family=poisson("identity"),corstr="ar1")
summary(gee1)
anova(gee1)

Results