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Re: st: generating event windows from event dates


From   Fernando Rios Avila <f.rios.a@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: generating event windows from event dates
Date   Mon, 21 May 2012 08:17:18 -0400

Hi Bülent Köksal
what about this 6 line code:
gen eventwindow=0
replace eventwindow=1 if evendate[n-2]==1
replace eventwindow=1 if evendate[n-1]==1
replace eventwindow=1 if evendate[n]==1
replace eventwindow=1 if evendate[n+1]==1
replace eventwindow=1 if evendate[n+2]==1
Fernando

On Mon, May 21, 2012 at 7:55 AM, Bülent Köksal <bkoksal@gmail.com> wrote:
> Dear Stata Users
>
> I have a dummy variable that equals one for certain event dates. How
> can I generate a new indicator variable that is equal to one for event
> windows like (-2,2)?
>
> For example,
>
> I have t and eventdate below and would like to generate eventwindow.
> Thanks in advance for any help.
>
>
> t       eventdate       eventwindow
> 1       0       0
> 2       0       0
> 3       0       1
> 4       0       1
> 5       1       1
> 6       0       1
> 7       0       1
> 8       0       0
> 9       0       0
> .
> .
> .
> 16      0       0
> 17      0       0
> 18      0       1
> 19      0       1
> 20      1       1
> 21      0       1
> 22      0       1
> 23      0       0
> 24      0       0
>
>
>
> --
> Bülent Köksal
>
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