endometriosis {PBImisc} | R Documentation |
How the endometriosis affects concetration of alpha and beta factors in the blood.
data(endometriosis)
data.frame with 165 obs. and 4 variables
disease
disease, blood samples were taken from women with endometriosis of from healthy ones
phase
phase in the menstrual cycle as the examination day (proliferative or secretory)
alpha.factor
, beta.factor
concentration of alpha and beta factors in blood
Dataset used as example of ANCOVA
Artificial dataset generated to be consistent with Ula S. study
data(endometriosis)
library(lattice)
xyplot(log(alpha.factor)~log(beta.factor)|disease*phase,
data=endometriosis, type=c("p", "r"))
summary(aov(alpha.factor~beta.factor*disease*phase, data=endometriosis))