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-statsby- could be your friend, but you really need to frame your question
in terms of an official example:


*************
sysuse auto, clear
bys rep78: pca trunk weight length headroom
*************



HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von
mmolina@uniroma3.it
Gesendet: Donnerstag, 11. März 2010 12:29
An: statalist@hsphsun2.harvard.edu
Betreff: st: PCA results and new variable

Dear Statalist,
I am performing a PCA analysis of specific firms'(id) characteristics
(varname) within regions.
I would like to know if it possible to create a new variable with the
results of the cumulative of the first component to be assigned to each
firm (id).
Thanks in advance,
Alejandra



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