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Re: st: RE: year-wise rank function for multi-level data
From
Apalak Khatua <[email protected]>
To
[email protected]
Subject
Re: st: RE: year-wise rank function for multi-level data
Date
Mon, 23 May 2011 13:42:10 +0530
Apologies for the delay in response. This is what I was looking for.
Thanks a lot!
Warm Regards,
Apalak Khatua
IIM Calcutta - INDIA
On Wed, May 18, 2011 at 10:58 PM, Nick Cox <[email protected]> wrote:
> As I understand it you want something like this:
>
> egen tag = tag(bg_code time)
> egen rank = rank(bg_sales) if tag, by(time) field
> bysort bg_code time (rank) : replace rank = rank[1]
>
> Nick
> [email protected]
>
> Apalak Khatua
>
> I am using unbalanced panel data. There are multiple firms (firm_code)
> within a business group (bg_code). I am considering sales for each
> firm (i.e. firm_sales) as a proxy for firm size. So business group
> size/sales (bg_sales) would be the summation of all firm-level sales
> of that particular business group for that particular year (time).
> Which I am calculating by:
>
> egen bg_sales = total(firm_sales), by(bg_code time)
>
> Now I would like to get the year-wise rank variable of all business
> groups (bg_code) in terms of size (i.e. bg_sales) . Here the unique id
> can be defined by bg_code and year (not firm_code). The rank variable
> for the biggest business group (in terms of bg_sales or size of the
> business group) for that particular year should be 1 and so on. How to
> write the code to get this rank variable against each bg_code for each
> year?
>
>
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