st: Collapsing dataset

["kelly johnson" <econometrics@hotmail.com>]

Hi,

Suppost I have data like this:


Date		Var1
07/24/2002	10
07/24/2002	10
07/24/2002	10
07/24/2002	10
07/24/2002	10
07/24/2002	10
07/24/2002	10
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/25/2002	12
07/26/2002	14
07/25/2002	14
07/25/2002	14
07/25/2002	14
07/25/2002	14

How do i get a data set like this:

Date	Var1

07/24/05  10
07/25/05  12
07/26/05  14

Thanks!

_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today - it's FREE! 
http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/