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st: -center- updated on SSC


From   "Jann, Ben" <ben.jann@soz.gess.ethz.ch>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: -center- updated on SSC
Date   Mon, 30 Aug 2004 20:22:09 +0200

Thanks to Kit Baum, the -center- package has been updated
on SSC. Type 

 . ssc install center, replace

to update the package on your local system.

Changes:

- -center- is now very efficient in centering variables
  for many by-groups (-by ...: center ...-).  

- A -casewise- option has been added for the listwise 
  exclusion of cases with missing values.

- A -theta- option has been added for quasi-demeaning.

- The -meansave- and -sdsave- options now allow the 
  specification of a prefix for the saved variables (the 
  -mprefix- and -sdprefix- options are discontinued).

ben

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