Dear Remi, Take a look at the Anova() function in the car package. In your case, you could use
Anova(lm(as.matrix(Y) ~ x + z)) or, for more detail, summary(Anova(lm(as.matrix(Y) ~ x + z))) I hope this helps, John ------------------------------------------------ John Fox Sen. William McMaster Prof. of Social Statistics Department of Sociology McMaster University Hamilton, Ontario, Canada http://socserv.mcmaster.ca/jfox/ On Wed, 17 Apr 2013 07:47:27 -0700 (PDT) Rémi Lesmerises <remilesmeri...@yahoo.ca> wrote: > Dear all, > > I'm trying to compare two sets of variables, the first set is composed > exclusively of numerical variables and the second regroups factors and > numerical variables. I can't use a Manova because of this inclusion of > numerical variables in the second set. The solution should be to perform a > Mancova, but I didn't find any package that allow this type of test. > > I've already looked in this forum and on the net to find answers, but the > only thing I've found is the following: > > > lm(as.matrix(Y) ~ x+z) > x and z could be numerical and factors. The problem with that is it actually > only perform a succession of lm (or glm), one for each numerical variable > contained in the Y matrix. It is not a true MANCOVA that do a significance > test (most often a Wald test) for the overall two sets comparison. Such a > test is available in SPSS and SAS, but I really want to stay in R! Someone > have any idea? > > Thanks in advance for your help! > > Rémi Lesmerises, biol. M.Sc., > Candidat Ph.D. en Biologie > Université du Québec à Rimouski > remilesmeri...@yahoo.ca > > [[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.
