Date:         Thu, 11 Sep 1997 17:01:11 -0400
Reply-To:     Garth Rauscher <grausche@SPH.UNC.EDU>
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
From:         Garth Rauscher <grausche@SPH.UNC.EDU>
Subject:      Re: deleting duplicates
Comments: To: Lynn Nicole Lethbridge <lynnl@IS.DAL.CA>
In-Reply-To:  <5v96ou$ruo$1@News.Dal.Ca>
Content-Type: TEXT/PLAIN; charset=US-ASCII

to remove duplicate ids, try this:
 
proc sort nodupkey;
by id;
run;
 
 
 
On Thu, 11 Sep 1997, Lynn Nicole Lethbridge wrote:
 
> Hi there
>
> I have data where there are duplicates of observations. I'd like to get
> rid of the duplicates which appear together. Included with the data are
> unique identifiers for each observation. So for example in the following:
>
>         obs  id
>         1     1
>         2     2
>         3     3
>         4     3
>         5     3
>
> I'd like to get rid of obs 4 and 5.
>
>
> The repeats always follow directly after the original observation which I
> keep.
>
>
> Thanks so much for any help.
>
> Lynn
>