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RE: st: sum question


From   "White, Justin" <[email protected]>
To   <[email protected]>
Subject   RE: st: sum question
Date   Tue, 13 Jun 2006 11:05:34 -0400

Did you try a replace command?

You could say:

Replace income = 40 if id==x
Replace income = 45 if id==xx

That is probably the easiest thing to do.

Justin 

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Patricia Vera Rojas
Sent: Tuesday, June 13, 2006 11:02 AM
To: [email protected]
Subject: st: sum question

Hi everyone,

I have:

ID  Income
x     15
x     20
x      5
xx     15
xx     10
xx     10
xx     10

I want to get:

ID  Tot-Inc
x     40
x     40
x     40
xx    45
xx    45
xx    45
xx    45


How can I do it?

Thanks a lot,

Patricia

 
> I have a recursive problem involving linked list of
> structures in Mata, but 
> after some number of chains (number is not fixed, that's
> why I decided to 
> use list instead of a matrix) I don't need an earlier
> members of the list 
> and they can be dropped to free some memory. If I don't
> drop them, my list 
> is getting too long and even makes Stata to crash.
> 
> I was wondering if there was some way of clearing
> structures like other 
> objects in Stata.
> 
> Thanks in advance,
> Zurab
> 
> 
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> *   http://www.stata.com/support/statalist/faq
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> 


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