A not-so-elegant solution involves the use of -tag- and -collapse-, for example:
egen tag = tag(date var1)
keep if tag
Hope this helps,
Clint
On 20 Jul 2005 at 13:36, kelly johnson wrote:
> 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!
>
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