Excellent. Thanks a lot Maarten; I will check it out.
---
Aysegul Aydin
Assistant Professor
University of Colorado
Department of Political Science
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Maarten buis
Sent: Sunday, August 26, 2007 11:23 AM
To: [email protected]
Subject: Re: st: RE: Comparison in survival analysis
This is probably not the answer you are looking for, but here goes:
Once you have the likelihood you can easily program it yourself using
-ml-. You will want to have a copy of "Maximum Likelihood Estimation
with Stata" http://www.stata-press.com/books/ml.html . This book
actually discusses programming a weibull, so that will probably provide
a convenient starting point for your program.
Hope this helps,
Maarten
--- Aysegul Aydin <[email protected]> wrote:
> I was asking POLMETH a few weeks ago about a user-written or canned
> Stata method to estimate generalized weibull though without much
> luck. Christopher Zorn also adopted the same method in his 2000
> Political Analysis article "Modeling Duration Dependence". This is a
> method I believe that allows the user to model the shape parameter
> with covariates. However, Zorn was using LIMDEP, so I am not sure
> whether this is doable in Stata. But if any of our colleagues have an
> idea about how to do this, I will also greatly appreciate their
> feedback.
-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
___________________________________________________________
Want ideas for reducing your carbon footprint? Visit Yahoo! For Good
http://uk.promotions.yahoo.com/forgood/environment.html
*
* 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/
