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RE: st: questions


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   stata list <statalist@hsphsun2.harvard.edu>
Subject   RE: st: questions
Date   Mon, 2 Nov 2009 13:02:51 +0000 (GMT)

---- Tunga Kantarci wrote:
> 2. Suppose that I wish to calculate the standard error of
> _b[_cons]/_b[variablename]. Stata help system indicates 
> that Stata uses the "delta" method to calculate this
> standard error. But I wish to see what Stata exactly
> calculates. How do I see it? Or do I need the Stata manual
> books for this? Stata help system does not indicate any
> formula it uses. 

You can take a look at what it is exactly that Stata does
if it is implemented in .ado using the -viewsource- command.
So, typing -viewsource nlcom- will give you the exact .ado
code used in creating those standard errors. This may be a 
bit more detail than you are looking for. A more gentle 
introduction can be found here:
http://www.stata.com/support/faqs/stat/deltam.html

Hope this helps,
Maarten

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

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


      

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