Phuong,
You can use -prgen- to generate the predicted and cumulative predicted
probabilities (-prgen- is part of J. Scott Long's -spostado- package). For
example:
. use http://www.stata-press.com/data/lfr/ordwarm2.dta, clear
(77 & 89 General Social Survey)
. qui ologit warm yr89 male white age ed prst
. prgen age, from(20) to(80) gen(prob) x(male = 0 yr89 = 1) ncases(13)
ologit: Predicted values as age varies from 20 to 80.
yr89 male white age ed prst
x= 1 0 .8765809 44.935456 12.218055 39.585259
. twoway line probs* probx, title(Cumulative Probabilities)
. twoway line probp* probx, title(Predicted Probabilities)
Hope this helps,
Scott
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of Phuong Nguyen
> Sent: Friday, November 26, 2004 7:11 PM
> To: [email protected]
> Subject: st: Ploting Predicted Probability for Ologit
>
> Hi there,
>
> I wonder if you know the way to plot predicted probablity for ologit
> regression? I followed chapter 5 in Long's book (Regression models for
> categorical and limited dependent variables). As for now, I am able to
> calculate all marginal probabilities at min, max, and average values
> but I can't produce predicted and cummulative probabilities graphs as
> in Figure 5.3.
>
> thanks ,
> Phuong
> *
> * 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/
*
* 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/
