st: computing preference choices

[Daniel Marcelino <dmsilv@gmail.com>]

Dear all,

I dealing with a puzzle that I need some help. I have a data set where
I'd like to determine within "r" the most preferable choice (choice1
to n) as in the replication above.
So, there are three essential tasks: I need to tally the votes for
every id (number), I need to see if the number id with most votes has
at least 50%+ of all votes, and I need to discover who's the id the
the least amount of votes.
After performed these tasks in fly, I need to save the winner
information (r and which round choice), I need to proceed dropping id
got lesser votes in the first choice, but considering its second
choice vote. Test again if there is any id with 50%+ of all votes.
This procedure ends when any id gets 50%+ in each "r".

Daniel


clear
input str2 r w byte(choice1 choice2 choice3)
  "a" .5 1 2 3
  "a" .1 2 3 4
  "a" .9 3 2 5
   "a" .9 3 4 2
  "a" .2 4 5 1
  "a" .3 5 1 3
  "b" .4 1 4 3
  "b" .1 2 3 4
  "b" .6 3 2 5
 "b" .85 4 1 2
 "b" .85 4 5 1
 "b" .7 1 5 4
 "c" .4 2 1 3
 "c" .2 2 4 1
 "c" .7 3 4 5
 "c" .8 4 1 2
 "c" .8 4 5 1
 "c" .4 5 4 3
 "d" .4 . 1 3
 "d" .2 2 4 .
 "d" .7 . 5 .
 "d" .8 4 1 2
 "d" .8 4 5 1
 "d" .4 . . .
end

-- 
About me: http://danielmarcelino.zip.net/
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