1. This is the R-help mailing list, not "Frank and Dennis"
2. You seem to be referring to two posts from July 2010 by Frank Harrell and 
Dennis Fisher. 

-pd

> On 13 Mar 2019, at 12:06 , Jackson, Daniel <daniel.jacks...@astrazeneca.com> 
> 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
> ________________________________
> 
> AstraZeneca UK Limited is a company incorporated in =\...{{dropped:26}}

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