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Date:         Wed, 5 Nov 2003 07:02:37 -0800
Reply-To:     Robert <deps_bear@YAHOO.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Robert <deps_bear@YAHOO.COM>
Organization: http://groups.google.com
Subject:      Re: Help? Pick up the every first record in 5 minutes intervals
              every day.
Content-Type: text/plain; charset=ISO-8859-1

Non-SQL approach:

data temp; set first_obs; timea = put(rawtime,z6.); time = hms(substr(timea,1,2),substr(timea,3,2),substr(timea,5,2)); format date1 date9. time time8.; run;

proc sort;by date1 time;

data temp; retain basetime; set temp; by date1 time; if first.date1 then basetime=time; diff = floor ( ( abs( (basetime - time) / 60 ) ) / 5 ) ; format basetime time8.; run;

proc sort;by date1 time diff;

data temp; set temp; by date1 diff time ; if first.diff; keep date1 time price; run;

proc print; var date1 time price;


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