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st: Automatic mean-centering?

From   "Clive Nicholas" <>
Subject   st: Automatic mean-centering?
Date   Wed, 25 Aug 2004 20:11:28 +0100 (BST)


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

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:
Newcastle University  |
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