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Re: st: Re: Running a foreach loop over a sequence of dates


From   "Brian P. Poi" <[email protected]>
To   [email protected]
Subject   Re: st: Re: Running a foreach loop over a sequence of dates
Date   Wed, 3 Dec 2008 16:52:51 -0600 (CST)

----- Original Message ----- From: "Augusto Cadenas"
<[email protected]>
To: <[email protected]>
Sent: Wednesday, December 03, 2008 10:02 PM
Subject: st: Running a foreach loop over a sequence of dates

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')
}

 How about this:

   forvalues t = `=q(1992q1)'/`=q(2000q4)' {
      reg y L.y L.x if date >= q(1960q1) & date <= `t'
      reg y L.y L.x if date >= `t'-20 & date <= `t'
   }


 where date is your quarterly date variable.

   -- Brian Poi
   -- [email protected]

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