|Date: ||Mon, 10 Jan 2000 15:01:43 +0100|
|Sender: ||"SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>|
|From: ||Gehard Hellriegel <detecsm_hellriegelg@WESTLB.DE>|
|Subject: ||Antwort: set and by|
|Content-type: ||text/plain; charset=us-ascii|
with the BY statement you can use the automatic variables FIRST.xxxxx and
LAST.xxxxxx, where xxxxxx is one of the items in the BY list. The contents of
the variables is the information, if there is the first or last record in the
group currently in the PDV (active).
Panos PAPANIKOLAOU <PapanikolaouP@CARDIFF.AC.UK> on 06.01.2000 20:45:01
Bitte antworten an Panos PAPANIKOLAOU <PapanikolaouP@CARDIFF.AC.UK>
Kopie: (Blindkopie: DeTeCSM HellriegelG/D/ExternalStaff/WLB)
Thema: set and by
thank you very much for your helpful responses to my query
regarding the presence of an IN option in the SET statement. I
understand that the SET statement accepts a BY statement as
I have 2 data-sets and for each of those a i have an id variable. I
used the SET statement in order to add rows to the initial data-set.
IThat is, i wanted to stack them. I am wonder if i would supplement
ths SET statement with the BY command, would this cause any
harm on the output data-set? In other words, would the use of BY
statement harm the arising data-set? What would be the additional
benefits of using the BY statement?
Thank you very much indeed for taking the time to consider my
request. I look forward to hearing from you.
Mit freundlichen Gruessen
DeTeCSM, Gerhard Hellriegel
D - 40217 Duesseldorf
Tel.: +49211 826 6173
Fax: +49211 826 5393