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Re: st: AW: "vertical filter and sum of data"
From
Maximiliano Manuel Silva Correa <[email protected]>
To
[email protected]
Subject
Re: st: AW: "vertical filter and sum of data"
Date
Wed, 14 Jul 2010 12:32:04 -0400
Thanks a lot Martin.
2010/7/13 Martin Weiss <[email protected]>:
>
> <>
>
>
> Maximiliano may also want to take a look at NJC`s seminal
> http://www.stata-journal.com/sjpdf.html?articlenum=pr0004
>
>
>
> HTH
> Martin
>
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Maximiliano
> Manuel Silva Correa
> Gesendet: Dienstag, 13. Juli 2010 16:53
> An: [email protected]
> Betreff: st: "vertical filter and sum of data"
>
> Dear Stata Community,
>
> Id like to sum vertically some entries of my data but i dont know how.
> Could you please tell me the sintax and structure of how to do this?
>
> Suppose we have a several power transmission lines with several
> substations in between, all over the US, indexed from 1 to Ni,
> corresponding to a certain line Li. Each substation has a power
> consumption (suppose one line per state). Additionaly we have a time
> variable MONTH.
>
> The structure of the data is
>
> LINE S_INDEX MONTH POWER
>
> Fixing LINE, MONTH, id like to sum POWER all over (S_INDEX) the line.
>
> Any help will be greatly appreciated. Thank you in advance :) .
>
> Max
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