Statalist


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

Re: st: R: linear regression question


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: R: linear regression question
Date   Sun, 15 Mar 2009 15:48:52 +0000 (GMT)

--- On Sun, 15/3/09, Carlo Lazzaro wrote:
> your thread seems to refer to a log-linear model, where
> only the dependent variable (i.e., Y) is log-transformed.
> 
> In a log-linear model, a unit-change in the independent
> variable X (i.e., DeltaX=1)is associated with a 100*Beta% 
> change in Y.

This is one possible way of interpreting such a model. An 
alternative way is discussed in: Roger Newson (2003) "Stata
Tip 1: The eform() option with regress" The Stata Journal,
3(4): 445. 
http://www.stata-journal.com/article.html?article=st0054

Both interpretations are correct, they are just different
ways of looking at the same model.

Hope this helps,
Maarten

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

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


      

*
*   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 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index