If you are looking for robust multivariate or multivariable methods,
then review the Robust Methods Task View:
https://cran.r-project.org/view=Robust
--
David.
On 3/13/19 4:06 AM, Jackson, Daniel wrote:
Hi Frank and Dennis
I am in a similar situation but I would prefer to use a proportional odds
model. 2 questions.
1. Has rank ancova been implemented in R now, despite its short comings?
2. Where has it been shown to yield unreliable analyses? I would like this
evidence (which I believe but I would like to convince others!).
Thanks, Dan
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.