Hi,
I'm trying to verify the assumption of homogeneity of variance of residuals in
an ANOVA with levene.test. I don't know how to define the groups. I have 3
factors : A, B and C(AxB).
What do I have to change or to add in the command to set that I'm working with
the residuals and to set the groups?
library(car)
attach(anova.sns2)
levene.test(residuals ~ ???)
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
