On 11/13/2010 8:09 AM, Kristofer Munsterhjelm wrote:
Sand W wrote:
Here are the results on an actual election:
http://www.demochoice.org/dcresults.php?poll=OakMayor&type=table
<http://www.demochoice.org/dcresults.php?poll=OakMayor&type=table>
Perata (or maybe someone in his camp) accuses the other candidates of
"gaming the system" by promoting each other as 2nd choices.
Some challengers tried to do that to IRV-leader Kriss Worthington
too, but he won by a landslide.
Unfortunately, there isn't enough data here to check who would won
under other methods, except for Plurality (where Don Perata would have
won). To find out the social order for a Condorcet method, one would
need the Condorcet matrix, and for most other methods, the raw ballot
data itself.
Raw ballot data is here:
http://www.acgov.org/rov/rcv/results/OaklandMayor/ballot_image.txt
http://www.acgov.org/rov/rcv/results/OaklandMayor/master_lookup.txt
http://www.acgov.org/rov/rcv/results/ballot_image_help.pdf
Here is the Condorcet matrix from these data files (entries are the
number preferring the row candidate over the column candidate). If your
email program doesn't handle HTML tables very well, this might be scrambled.
ARNOLD FIELDS DON MACLEAY DON PERATA GREG HARLAND JEAN QUAN JOE
TUMAN LARRY LIONEL ''LL'' YOUNG JR. MARCIE HODGE REBECCA KAPLAN
TERENCE CANDELL Write-In
ARNOLD FIELDS 0 4476 3174 4286 3527 3601 4487 4403 3614 4328
4680
DON MACLEAY 6031 0 5018 5912 4277 5209 6119 6026
4357 6064 6257
DON PERATA 65149 65165 0 65011 51720 59033 64963 63702 53661
64338 65308
GREG HARLAND 5169 5312 3582 0 4331 3667 5382 5244
4607 5087 5500
JEAN QUAN 74283 73079 53778 74144 0 63212 74108 72437 50544
73336 74460
JOE TUMAN 45690 45641 34776 45562 29941 0 45752 45239 29005
45475 46025
LARRY LIONEL ''LL'' YOUNG JR. 6385 6427 4054 6482 4706 5753 0
5604 4897 5898 6580
MARCIE HODGE 16536 16551 10194 16526 10489 14599 16240 0
12082 15707 16709
REBECCA KAPLAN 68989 67789 49749 68929 44863 58003 68684
67102 0 68293 69269
TERENCE CANDELL 10271 10386 6585 10257 7645 9152 10151 9520
8384 0 10563
Write-In 1584 1577 899 1575 1098 1332 1562 1516
1191 1557 0
What you could really do if you are serious about promoting a
different ranking system is to download the "Demochoice Code" and
rewrite it to use your preferred voting system, then put it online,
because the code is public domain.
A similar poll system, CIVS, uses Condorcet methods (one can choose
whether to use Schulze, Ranked Pairs/MAM, or "Smith,IRV"). The source
code is freely available at
http://www.cs.cornell.edu/w8/~andru/civs/changelog.html .
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Bob Richard
Executive Vice President
Californians for Electoral Reform
PO Box 235
Kentfield, CA 94914-0235
415-256-9393
http://www.cfer.org
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