[R] predict ordered regresssion

[Prof Brian Ripley]

On Sun, 10 Apr 2011, Joe P King wrote:

> Is there a way to get confidence intervals around an ordered regression like
> polr() in the MASS package?

Please don't both ask the author directly *and* post to a forum.

The answer is the same as the one I sent you directly.

- For what do you want CIs, and why?  The fits/predictions are 
probabilities, and CIs for probabilities are rarely useful.

- You can do this by simulation, and simulate() has a polr method.

> -------------------------------------------
>
> Joe King, M.A.
>
> Ph.D. Student
>
> University of Washington - Seattle
>
> 206-913-2912
>
> <mailto:jp at joepking.com> jp at joepking.com
>
> -------------------------------------------
>
> Ad astra per aspera  - "Through hardships to the stars"
>
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Please don't send HTML when asked in the posting guide not to: that is 
why we get far too many blank lines in your message.

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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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