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cff-version: 1.2.0
message: 'To cite package "electsys21" in publications use:'
type: software
license: MIT
title: 'electsys21: Voting Methods for Ranked, Rated and Approval Ballots'
version: 0.1.0
abstract: Implements a range of voting methods and electoral systems for determining
  election winners, including the D21 method with and without minus votes (Janecek,
  <https://www.ih21.org/en/d21-janecek-method>), first-past-the-post, two-round runoff,
  instant runoff, the Borda count, approval voting, majority judgement and the Condorcet
  method. The functions accept several ballot formats - ranking, cardinal utilities,
  approvals and scores - with automatic detection of the input type, configurable
  tie-breaking and tidy summaries of the results.
authors:
- family-names: Iakimov
  given-names: Ivan
  email: ivan.iakimov@ih21.org
repository: https://ivan-ih21.r-universe.dev
repository-code: https://github.com/ivan-ih21/electsys21
commit: b3daad404965e38796325a66382c1483aa43ca7e
url: https://github.com/ivan-ih21/electsys21
date-released: '2026-07-13'
contact:
- family-names: Iakimov
  given-names: Ivan
  email: ivan.iakimov@ih21.org