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RE: Generating margins of party victory (Was st: question: how do i...)


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: Generating margins of party victory (Was st: question: how do i...)
Date   Mon, 7 Mar 2005 10:37:39 -0000

Thanks for the plug for -majority-. 
However, -majority- can handle 
two or more parties. Nevertheless
it is not the optimum tool here, 
as (strange though it may seem) 
it doesn't support precisely this 
calculation. 

Nick 
n.j.cox@durham.ac.uk 

Clive Nicholas
 
> Israel Solares Bravo wrote:
> 
> > i have the following problem:
> >
> > i want to construct a variable called margin of victory:
> >
> > my data set looks something like this:
> >
> >
> > state	votesA	votesB	votesC	votesD
> > 1	10	1	6	21
> > 2	11	2	7	22
> > 3	12	3	8	13
> > 4	1	4	2	3
> > 5	2	5	3	7
> >
> >
> > my question is:
> >
> > how do i create a variable called margin_of_victory = votes 
> for 1st place
> > -
> > votes for 2nd place?, i.e. 21-10 for state 1, 22 - 11 for 
> state 2, 13 - 12
> > for state 3, 4 - 3 for state 4, etc.
> 
> As a starting point, try using Nick Cox's -majority- routine, 
> downloadable
> by SSC for just this purpose (-findit majority-). An example:
> 
> . majority votesD votesA, pos(votesD) neg(votesA) by(state) [percent]
>   generate(combo1)
> 
> I say "starting point", because -majority- can only handle 
> two parties at
> once: and even then in a particular combination.
> 

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