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SOURCE FILE:     03c_c6_b8_style-gallery.yaml
TABULATED FILE:  03c_c6_b8_style-gallery_tabulated.txt
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election_title: "Voting styles — eight ways to fill out one 5-star ballot"

scenario_description: |-
  A gallery of legal STAR ballot styles, one voter per style: traditional
  (choose-one), strong backup, weak backup, partisan slate, ranked-style,
  nuanced, "anyone but...", and a protest (least-bad) vote. Every ballot is
  valid — STAR scores each candidate independently 0-5, so equal scores and
  skipped candidates can't spoil a ballot. Note the two Equal Support ballots
  in the runoff: the partisan and "anyone but" voters scored both finalists
  the same, so they expressed no preference between them — but their scores
  still helped pick the finalists.
  Lesson: 01_STAR/01_Learn/voting_styles/README.md

voting_method: STAR   # STAR Voting — single-winner
num_winners: 1

ballots: |-
  Allen,Bianca,Chris,Desi,Edith,Frank
      0,     5,    0,   0,    0,    0   # traditional choose-one: 5 for Bianca, nothing else
      0,     5,    0,   0,    0,    4   # strong backup: Bianca 5, Frank close behind at 4
      0,     5,    0,   0,    0,    1   # weak backup: Bianca 5, Frank a reluctant 1
      5,     5,    0,   0,    0,    5   # partisan slate: 5s for my party (A, B, F), 0s for the rest
      2,     5,    0,   3,    1,    4   # ranked-style: each score used once, like a ranking
      3,     4,    0,   3,    1,    5   # nuanced: full range, equal 3s where truly equal
      5,     5,    0,   5,    5,    5   # "anyone but Chris": max support for everyone else
      0,     0,    0,   0,    0,    1   # protest / least-bad: dislikes everyone, Frank least

expected_winners:
  - Bianca

# file: 03c_c6_b8_style-gallery.yaml

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TABULATION RESULTS
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=== Voting styles — eight ways to fill out one 5-star ballot ===
  A gallery of legal STAR ballot styles, one voter per style: traditional
  (choose-one), strong backup, weak backup, partisan slate, ranked-style,
  nuanced, "anyone but...", and a protest (least-bad) vote. Every ballot is
  valid — STAR scores each candidate independently 0-5, so equal scores and
  skipped candidates can't spoil a ballot. Note the two Equal Support ballots
  in the runoff: the partisan and "anyone but" voters scored both finalists
  the same, so they expressed no preference between them — but their scores
  still helped pick the finalists.
  Lesson: 01_STAR/01_Learn/voting_styles/README.md

--- Runoff (Preference) Matrix ---
Head-to-head / pairwise comparison
Legend: For - Equal Support - Against
        * indicates Top 2 Finalist
               |    Allen   | * Bianca  |   Chris   |    Desi   |   Edith   | * Frank   |
-----------------------------------------------------------------------------------------
       Allen > |    ---     |0 - 3 - 5  |4 - 4 - 0  |1 - 6 - 1  |3 - 5 - 0  |0 - 3 - 5  |
    * Bianca > | 5 - 3 - 0  |   ---     |7 - 1 - 0  |6 - 2 - 0  |6 - 2 - 0  |4 - 2 - 2  |
       Chris > | 0 - 4 - 4  |0 - 1 - 7  |   ---     |0 - 5 - 3  |0 - 5 - 3  |0 - 1 - 7  |
        Desi > | 1 - 6 - 1  |0 - 2 - 6  |3 - 5 - 0  |   ---     |2 - 6 - 0  |0 - 2 - 6  |
       Edith > | 0 - 5 - 3  |0 - 2 - 6  |3 - 5 - 0  |0 - 6 - 2  |   ---     |0 - 2 - 6  |
     * Frank > | 5 - 3 - 0  |2 - 2 - 4  |7 - 1 - 0  |6 - 2 - 0  |6 - 2 - 0  |   ---     |

[Condorcet Winner]
  Condorcet Winner: Bianca — matches the STAR winner

[Condorcet Loser]
  Condorcet Loser: Chris — loses every head-to-head matchup

--- STAR Voting Method (single winner) ---
[STAR Voting]
 Tabulating 8 ballots.
Allen,Bianca,Chris,Desi,Edith,Frank
    0,     5,    0,   0,    0,    0
    0,     5,    0,   0,    0,    4
    0,     5,    0,   0,    0,    1
    5,     5,    0,   0,    0,    5
    2,     5,    0,   3,    1,    4
    3,     4,    0,   3,    1,    5
    5,     5,    0,   5,    5,    5
    0,     0,    0,   0,    0,    1

[Score Distribution] (how many ballots gave each star rating)
                Score
Candidate  5  4  3  2  1  0  | Total   Avg
Allen      2  0  1  1  0  4  |    15   1.9
Bianca     6  1  0  0  0  1  |    34   4.3
Chris      0  0  0  0  0  8  |     0   0.0
Desi       1  0  2  0  0  5  |    11   1.4
Edith      1  0  0  0  2  5  |     7   0.9
Frank      3  2  0  0  2  1  |    25   3.1

[STAR Voting: Scoring Round]
 The two highest-scoring candidates advance to the next round.
   Bianca        -- 34 -- First place
   Frank         -- 25 -- Second place
   Allen         -- 15
   Desi          -- 11
   Edith         --  7
   Chris         --  0
 Bianca and Frank advance.

[STAR Voting: Automatic Runoff Round]
 The candidate preferred in the most head-to-head matchups wins.
   Bianca        -- 4 -- First place
   Frank         -- 2
   Equal Support -- 2
 Bianca wins.
   Runoff math:
     8  ballots cast
   − 2  Equal Support (no preference between the two finalists)
     ─
     6  voters with a preference  (majority = 4)
           Bianca 4 (67%)  ·  Frank 2 (33%)

[STAR Voting: Winner — STAR Voting Method (single winner)]
 Bianca