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RE: st: FW: add 3 quarters
From
"Agnieszka Trzeciakiewicz" <[email protected]>
To
<[email protected]>
Subject
RE: st: FW: add 3 quarters
Date
Wed, 2 May 2012 20:29:36 +0100
Dear Brendan,
Thanks this works!
So if I would like to add -20 quarters, I just replace 4's with 20's.
Thanks again
Best wishes,
Agnieszka
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Brendan Halpin
Sent: 02 May 2012 20:16
To: [email protected]
Subject: Re: st: FW: add 3 quarters
On Wed, May 02 2012, Agnieszka Trzeciakiewicz wrote:
> Hello,
>
> I have a dataset which contains an information on individuals and
> traces the period of a record in quarters.
> There are two variables in the dataset: “ID”, and “time”
>
> I would like to generate additional 4 rows for each observation, and
> the only variable that I need to change with added rows is time
> variable which should equal time – 1quarter, time -2 quarters,,
> time-3 quarters and time
> -4 quarters.
Something like this should do it:
. expand 4
. sort id
. by id: replace time = time - (_n-1)/4
Brendan
--
Brendan Halpin, Department of Sociology, University of Limerick, Ireland
Tel: w +353-61-213147 f +353-61-202569 h +353-61-338562; Room F1-009 x 3147
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http://teaching.sociology.ul.ie/bhalpin/wordpress twitter:@ULSociology
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