Re: st: use of fracpoly with Proportional Odds model?

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 06:12 AM 7/5/2006, Stephan Rudolfer wrote:
> I am fitting PO models to ordinal categorical data, and wish to 
> apply fractional polynomials to the continuous covariates.  However, 
> fracpoly does not allow ologit as the regression command.
>
> Is there a work-around? Or some other way of achieving my aim?
>
> Many thanks in advance for any assistance with this.
> --
The list of "blessed" programs is contained in

frac_chk.ado

I don't know why ologit is not on the list, e.g. is it sound 
statistical practice to exclude it or did nobody ever get around to 
programming it?  I also don't know what good or bad things would 
happen if you created a modified program where ologit was among the 
blessed, but I suppose you could try it.  Just don't zap the originals.


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
FAX:    (574)288-4373
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu
WWW (personal):    http://www.nd.edu/~rwilliam
WWW (department):    http://www.nd.edu/~soc 
*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/