Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: st: Problem recreating SE and CI using e(V) from logistic, stcox etc


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: Problem recreating SE and CI using e(V) from logistic, stcox etc
Date   Thu, 29 Apr 2010 08:20:09 -0700 (PDT)

--- On Thu, 29/4/10, Lee, William wrote:
> I am wanting to extract figures from a regression model,
> but find large differences between the SE as calculated from
> the variance covariance matrix and that which appears in the
> output. First using stcox, and since replicated in logistic.
> What is odd is that the CIs (calculated from my SE) agree to
> many decimal places with each other. 

Here is at least a partial answer (why your method got the 
right confidence intervals):
http://www.stata.com/support/faqs/stat/2deltameth.html

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index