Date:         Fri, 22 Jan 2010 12:29:49 +0100
Reply-To:     Daniel Fernández <fdezdan@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Daniel Fernández <fdezdan@GMAIL.COM>
Subject:      Re: Lag function-quarterly data
Comments: To: SAS user <sasuser4@googlemail.com>
In-Reply-To:  <201001221115.o0MAoBgu027680@malibu.cc.uga.edu>
Content-Type: text/plain; charset=ISO-8859-1

hi,

how mnay lags you want? Do you compare 1974Q3 to 1974Q2 ? Or 4 quarters a year?

Daniel

2010/1/22 SAS user <sasuser4@googlemail.com>:
> Here is a sample of my data; I have around 600,000 observations
> ID      yearqtr variable1       variable2
> 006 1974Q4 200             300
> 006     1974Q3  100             153
> 006     1974Q2  360             256
> 006     1974Q1  256             369
> 006     1975Q4  369             257
> 006     1975Q3  596             589
> 006     1975Q2  965             125
> 006     1975Q1  259             789
> 005
>
>
> etc
>
>
>
> 004
>
> etc
> Any suggestions will be greatly appreciated.
>