NAME
Vote::Count::Method::WIGM
VERSION 1.21
SYNOPSIS
use Vote::Count::Method::WIGM;
use Vote::Count::ReadBallots 'read_ballots';
my $ballotset = read_ballots('t/data/Scotland2012/Cumbernauld_South.txt');
my $Cumbernauld = Vote::Count::Method::WIGM->new(
Seats => 4,
BallotSet => $ballotset,
VoteValue => 100000, # default
LogTo => '/tmp/cumbernauld_south_2012',
);
# Run the Election
$D->WIGRun();
# Write the Human Readable Logs
$D->WriteLog();
# Write the Events in JSON and YAML
$D->WriteSTVEvent();
Description
Implements Weighted Improved Gregory Single Transferable Vote based on Scotland's rules.
WIGRun
Run and log the Election.
Implementation Notes
The Scottish Rules specify 5 decimal places, a weight of 100,000 is used which is equivalent.
When more than one choice is Pending the rules call for a full Stage to elect each of them. Pending Choices cannot recieve additional votes, this implementation elects, charges, and rebates the Pending Choices, then starts a new Round. The final result will be the same, but Vote::Count::Method::WIGM rounds will not always match the stages.
Experimental
Small discrepencies with the stages data available for testing have been seen, which are likely to be rounding issues. Until further review can be taken, this code should be considered a preview.
The Rules
BUG TRACKER
https://github.com/brainbuz/Vote-Count/issues
AUTHOR
John Karr (BRAINBUZ) brainbuz@cpan.org
CONTRIBUTORS
Copyright 2019-2021 by John Karr (BRAINBUZ) brainbuz@cpan.org.
LICENSE
This module is released under the GNU Public License Version 3. See license file for details. For more information on this license visit http://fsf.org.