Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Automatic mean-centering?


From   "Clive Nicholas" <Clive.Nicholas@newcastle.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   st: Automatic mean-centering?
Date   Wed, 25 Aug 2004 20:11:28 +0100 (BST)

All,

I'm interested in re-running old models by mean-centering all my
continuous variables for comparison, as well as obtaining meaningful
intercept values. At the same time, I wish to include dummy variables
which, for obvious reasons, would not be mean-centered.

Now I know how to do this manually, as we all do:

. gen splodge = spludge-100

where 100 is the mean of SPLUDGE. But I'm interested to know if there's a
quicker way, especially if I have a _lot_ of continuous variables to
mean-centre.

Having explored the help files for -xi- and Mitchell and Ender's -xi3-
(which IS downloadable via SSC, unlike -renvars-!), neither routine
automatically creates mean-centered variables. Searching -findit- _and_
the archive turned up nothing and nothing relevant respectively.

If anyone has any ideas, I'd be keen to hear them. Ta!

CLIVE NICHOLAS        |t: 0(044)191 222 5969
Politics              |e: clive.nicholas@ncl.ac.uk
Newcastle University  |http://www.ncl.ac.uk/geps
*
*   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index