Date:         Sat, 25 Sep 2010 03:16:38 -0400
Reply-To:     bbser2009 <bbser2009@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         bbser2009 <bbser2009@GMAIL.COM>
Subject:      by group processing, sas certification book, 2nd ed
Content-Type: text/plain; charset="us-ascii"

Hi there,



I have read the portion about by group processing in Chapter 12 several
times, still feel confused about those examples presented (I even think they
make mistakes), about the first.variable and last.variable in the situation
where we have 3 or more by variables.

Anyone, by any chance, has read that book? Is there better source explaining
by group processing, first and last.variables?



Thanks a lot, Max