R help - Mar 2019 - Rank ANCOVA

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 Engl...{{dropped:16}}

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.jackson1 at
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}}

Thanks I am now in personal communication with Frank anyway!

Dan

-----Original Message-----
From: peter dalgaard <pdalgd at gmail.com>
Sent: 14 March 2019 10:37
To: Jackson, Daniel <daniel.jackson1 at astrazeneca.com>
Cc: r-help at r-project.org
Subject: Re: [R] Rank ANCOVA

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.jackson1 at
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
> Engl...{{dropped:16}}
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
--
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000
Frederiksberg, Denmark
Phone: (+45)38153501
Office: A 4.23
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com









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-- 

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
> ________________________________
>
> AstraZeneca UK Limited is a company incorporated in Engl...{{dropped:16}}
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.