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Re: st: FW: add 3 quarters
From
[email protected] (Brendan Halpin)
To
[email protected]
Subject
Re: st: FW: add 3 quarters
Date
Wed, 02 May 2012 20:15:30 +0100
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
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