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RE: SPAM: st: Re: Cumulative sum


From   "de la Garza, Adrian" <ADelagarza@imf.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: SPAM: st: Re: Cumulative sum
Date   Mon, 3 May 2004 14:56:58 -0400

Michael, 

I don't think that gives me the cumulative sum, does it? It gives me the
overall sum by country. That is, for every observation for which the
country is the same, I will get the same 'sum' variable, if I do it that
way...

> -----Original Message-----
> From: Michael Blasnik [mailto:michael.blasnik@verizon.net] 
> Sent: Friday, April 30, 2004 5:28 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: SPAM: st: Re: Cumulative sum
> 
> 
> no loop needed...
> 
> by country: gen cum_amount=sum(amount)
> 
> Michael Blasnik
> michael.blasnik@verizon.net
> 
> ----- Original Message ----- 
> From: "de la Garza, Adrian" <ADelagarza@imf.org>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Friday, April 30, 2004 4:51 PM
> Subject: st: Cumulative sum
> 
> 
> > Hello everyone.
> > 
> > I would like to create a variable that gives me the cumulative of an
> > amount by country, like so:
> > 
> > country year quar amount cum_amount
> > Argentina 1990 1 100 100
> > Argentina 1990 2 50 150
> > Argentina 1990 2 25 175
> > Argentina 1990 2 100 275
> > Argentina 1990 3 200 475
> > ...
> > Bolivia 1990 1 25 25
> > Bolivia 1990 1 30 55
> > ...
> > 
> > Does anyone know a command that would do this without 
> needing to write a
> > loop?
> > 
> > Thank you!
> > Adrian
> > 
> > *
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> 
> *
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> 

*
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