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st: Running a foreach loop over a sequence of dates


From   "Augusto Cadenas" <aug.cadenas@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Running a foreach loop over a sequence of dates
Date   Wed, 3 Dec 2008 16:02:03 -0500

Hello,

I am trying to run a series of commands in a time series setting, and
interested in using variable time intervals (variable time windows, or
variable start/end dates). So ideally, I would like to loop with
-foreach- over a series of dates, but I cannot find the way of doing
this. To give you an idea of the kind of problem, here it is in
pseudo-code (not working):

*** begin pseudo-code

foreach t in 1992q1/2000q4 {
        reg y L.y L.x if tin(1960q1, `t')
        reg y L.y L.x if tin(`=`t'-20', `t')
}

*** end pseudo-code

I am sorry if this is a trivial question, but I really could not find
a way of performing this. Thanks for any hints.

AC
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