using MANOVA in R
On 9 May 2000, Peter Dalgaard BSA wrote:
Prof Brian D Ripley <ripley at stats.ox.ac.uk> writes:
Not really any of it! multilm fits multivariate linear models and does Hotelling T^2 tests. It does not group terms for AOV, and I think is only applicable for continuous variates (not factor explantory variables). Certainly the help and examples only discuss that case.
Had a closer look. The factor expl.var. would seem to be there case-wise, so you can build the models, but Wilk's Lambda and friends are absent, so you cannot (easily) do multi-df model reduction tests. However, it's no too far off. Is the author planning to develop it further?
Now it is my turn, I think :-) 1) "multilm" is on my list, but there are some theoretical problems (e.g. is the use of Moore-Penrose numerically appropriate ?) Any help by other distributors would be very welcome! 2) "multilm" was written for the use of the stabilized multivariate tests by Laeuter and Kropf, T^2 is only a by-product. Therefore the documentation is heavily biased on this. 3) I do think that one can take factors as design variables (there is an Iris example, I think). 4) I just had my third move this year (this time to Erlangen, Bavaria), so time is a problem too :-) Torsten -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._