BV2133 — Pet poll II (Approval): broad support elects Bird¶

Generated from bv2133_dyxrbr_pet2_approval.yaml — do not edit by hand. Regenerate: python STARVote_LH_tabulation_engine/tools_adam/scripts/build_yaml_pages.py.

Method: Approval Voting · 1 seat · Expected winner: Bird

▶ Live on BetterVoting: vote · results ↗ (election dyxrbr · test BV2133).

Scenario¶

One of four races in the BV2133 "Pet poll II" (BetterVoting election dyxrbr). This is the Approval race (approve any pet, 1 = approve). Bird is approved by the 9 Bird-first voters and the 10 Fish-first voters (who approve Cat, Fish, Bird) = 19 approvals — more than Dog (13) or Cat (10) or Fish (10) — so Approval elects Bird. Same electorate as the Plurality race (Dog), RCV-IRV race (Fish) and STAR race (Cat): four methods, four winners. BV also elects Bird. Live results: https://bettervoting.com/dyxrbr/results

Ballots¶

Row 1 = candidate names; each later row is one voter's approvals (1 = approve, 0/blank = not approved).

Dog,Cat,Fish,Bird
9: 0,0,0,1
10: 0,1,1,1
13: 1,0,0,0

What the engine says¶

Full report from the _tabulated mirror (regenerated on every run; every analysis forced on):

--- Approval Voting (single winner) ---
 Tabulating 32 ballots (any non-zero score = approval).

Ballots:
   columns = Dog, Cat, Fish, Bird      (1 = approve; 0 = not approved)
     9 × 0,0,0,1
    10 × 0,1,1,1
    13 × 1,0,0,0

   Bird -- 19 (59%) -- Elected
   Dog  -- 13 (41%)
   Cat  -- 10 (31%)
   Fish -- 10 (31%)

[Approval Distribution] (how many candidates each ballot approved)
   52 approvals across 32 ballots — average 1.6 of 4 (range 1–3).
     approved 1: 22 ballots
     approved 3: 10 ballots

[Co-Approval Matrix]
 Of the voters who approved the ROW candidate, the % who ALSO approved the COLUMN candidate.
         |  Bird  |  Dog   |  Cat   |  Fish  |
   -------------------------------------------
   Bird  |   --   |   0%   |  53%   |  53%   |
   Dog   |   0%   |   --   |   0%   |   0%   |
   Cat   |  100%  |   0%   |   --   |  100%  |
   Fish  |  100%  |   0%   |  100%  |   --   |

Winner — Approval Voting (single winner)
  Bird

Run it yourself:

python STARVote_LH_tabulation_engine/starvote_larry_hastings.py method_comparisons/pet_poll_four_winners/cases/bv2133_dyxrbr_pet2_approval.yaml

BV2133 — Pet poll II (Approval): broad support elects Bird¶

Scenario¶

Ballots¶

What the engine says¶

See also¶