Fred,
If all your ids are 9 chars wide and begining with a capital C, to deleting
everything else than the id, you can try :
gen apatkey2=""
replace apatkey2= substr(apatkey,strpos(apatkey,"C"), 9)
Hope this helps,
N
-------
Nicolas Couderc
Centre d�Economie de la Sorbonne, TEAM & CNRS
Maison des Sciences Economiques,
Universit� Paris 1 - Panth�on-Sorbonne
106-112, boulevard de l'H�pital
F-75647, Paris, Cedex 13
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