Re: st: Automatic mean-centering?

["Sarah A. Mustillo" <smustillo@psych.duhs.duke.edu>]

You are probably looking for something more automated or sophisticated, 
but I usually do something like this:

foreach var in x x1 x2 x3 x4 x5 x6 x7 x8...x100{
	egen temp`var'=mean(`var')
	gen c`var'=`var'-temp`var'
}

drop temp*

Sarah


Clive Nicholas wrote:


> 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
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--
Sarah A. Mustillo, Ph.D
Department of Psychiatry and Behavioral Sciences
Duke University School of Medicine
Box 3454
Durham NC 27710

919 687-4686 x231
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