Re: st: Re: Keeping the Earliest Observations on Each Leg

["Raphael Fraser" <raphael.fraser@gmail.com>]

Thanks much! Micheal

On 6/12/06, Michael Blasnik <michael.blasnik@verizon.net> wrote:
> bysort id lleg (date): keep if _n==1
>
> note: any ties on date will be rboken arbitrarily
>
> Michael Blasnik
> michael.blasnik@verizon.net
>
> ----- Original Message -----
> From: "Raphael Fraser" <raphael.fraser@gmail.com>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Monday, June 12, 2006 7:11 PM
> Subject: st: Keeping the Earliest Observations on Each Leg
>
>
> >I  am interested in keeping the earliest observations on each leg
> > where  left leg is denoted (lleg=1) and right leg (lleg=0). Can anyone
> > assist?
> >
> >      id         date   lleg
> >       46   22aug1993      0
> >       46   28sep1993      1
> >       46   28sep1993      1
> <snip>>
>
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