# Re: st: marginal effects for ordered logit

 From Nick Winter To statalist@hsphsun2.harvard.edu Subject Re: st: marginal effects for ordered logit Date Tue, 16 Nov 2004 12:21:29 -0500

My command -oprobpr-, available from SSC, is designed to calculate and graph predicted probabilities after ordered logit and probit, and should handle this case (and more).

--NW

At 03:09 PM 11/16/2004 +0000, you wrote:

```Dear Aga,

If you had Stata8 you could have used my earlier post:

-twoway function y = exp(-_b[mpg]*x- _b[mpg2]*x^2), range(12 41)
ytitle("odds") xtitle("mpg")- gives you the odds of belonging to a
group versus all `lower' groups.

now you could do something like:

version 7
sysuse auto
gen mpg2 = mpg^2
ologit rep78 mpg mpg2

preserve

drop _all
set obs 31
gen mpg =11 + _n
gen odds = exp(_b[mpg]*mpg + _b[mpg2]*mpg^2)

graph odds mpg, c(l)

restore

I forgot the correct -graph- syntax for stata7 to make the pretty, but
this should get you started.

--- <Agnieszka.Markiewicz@e...> wrote:
> Now when I know how to calculate the odds, could
> you help me with finding the right command to make a graph?

*
*   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/
```
--------------------------------------------------------
Nicholas Winter 607.255.8819 t
Assistant Professor 607.255.4530 f
Department of Government nw53@cornell.edu e
308 White Hall falcon.arts.cornell.edu/nw53 w
Cornell University
Ithaca, NY 14853-4601

*
* 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/