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Re: st: sum question


From   "Richard Atkins" <[email protected]>
To   <[email protected]>
Subject   Re: st: sum question
Date   Tue, 13 Jun 2006 16:14:12 +0100

If you have numerous values under ID, how about:

bysort ID: egen Totinc = sum(Income)

Regards

Richard Atkins


>>> [email protected] 06/13/06 4:02 pm >>>
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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