Re: st: RE: RE: RE: Writing the value of a variable in another variable in a selective way

[oezguer.guererk@uni-erfurt.de]

After 2 hours of unsuccesful trying on my own let me ask again please, 
this time more precisely:

I have n==20 "subjects", each with entries for t==60 periods. Each 
subject has a unique "partner". I would like to stata to write the value 
of the variable "profit" of subject i's partner into subject i's 
variable "partnerprofit", for each period.

I tried the code below, but it doesn't work.

forval subject =1/20 {

    forval period =1/60 {
     local partner = partner[`subject']
     replace partnerprofit = profit[`partner'] in `period'
}
}
}


Thank you very much again!
Ozgur



Nick Cox schrieb:
> Tim is correct; thanks! 
>
> Nick 
> n.j.cox@durham.ac.uk 
>
> Mak, Timothy
>
> I think Nick meant: 
>
> gen partnerprofit = profit[5] in 3
>
> But following this logic, and if your dataset is not large, you could do it in a loop, I think: 
>
> gen partnerprofit = .
> forval i=1/`=c(N)' {
>
> 	local partnerid = partnerid[`i']
> 	replace partnerprofit = profit[`partnerid'] in `i'
>
> }
>
> where I assume you have a partnerid variable which gives you the observation number of the partner. 
>
> If your id's do not go in 1,2,3,...,n, however, you may need to do a bit more programming... and probably -merge- is the easiest. 
>
> Nick Cox
>
> If the problem is just this, the solution would be  
>
> gen partnerprofit = profit[5] in 13 
>
> In general, think about a -merge-. 
>
> On Behalf Of oezguer.guererk@uni-erfurt.de
>
> How can I write the value of the variable called profit for e.g., 
> subject i as the value into another variable called "partnerprofit" of 
> another subject j?
>
> For example: I am subject 3, my partner is subject 5; his profit is 13, 
> now I would like to stata write in my "partnerprofit" the value 13.
>
>
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>   

--
Dr. Özgür Gürerk

Lst. für Mikroökonomie & Laboratorium für experimentelle Wirtschaftsforschung (eLab)
Microeconomics & Laboratory for Experimental Economics (eLab)

Universität Erfurt, Nordhäuser Str. 63, D-99089 Erfurt 

Tel: +49 361 7374561
Fax: +49 361 7374569
www.uni-erfurt.de/elab
--

*
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