Date:         Fri, 18 Jul 2003 07:55:46 -0400
Reply-To:     Thomasset Pierre <pierre.thomasset@EURONET.BE>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Thomasset Pierre <pierre.thomasset@EURONET.BE>
Subject:      Re: Using link in data step
Comments: To: Jess Balint <JBalint@ALLDATA.NET>

Hello,

We sometimes use the following program structure :

data tz;
  merge t1 t2;
  by a b;
  if first.b then link premier;
  link suivant;
  if last.b then link dernier;
  return;

premier:
  ... process first of a group 'a b' ...
  return;

suivant:
  ... process each of a group 'a b' ...
  return;

dernier:
  ... process last of a group 'a b' ...
  return;

run;

Regards.