User:Psephomancy/2D election simulation examples: Difference between revisions
User:Psephomancy/2D election simulation examples (view source)
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, 5 years agosections and graphs
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*B is a moderate candidate, and the best representative of the average voter
== FPTP ==
C wins under [[First Past the Post electoral system|first-past-the-post voting]], since A and B split the votes of the left wing of the electorate.▼
▲C wins under [[First Past the Post electoral system|first-past-the-post voting]], since A and B split the votes of the left wing of the electorate.
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=
|x=A, B, C
|y=1031, 861, 1108
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
== IRV ==
A wins under [[Instant-runoff voting|Instant-Runoff Voting]] ("Ranked-Choice Voting"), after B is eliminated for not having enough first-preference votes, leaving A and C. (A is slightly closer to the center, so more people in the center support A over C.)
First round is the same as plurality:
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Votes|type=rect
|x=A, B, C
|y=1031, 861, 1108
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
Second round is:
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Votes|type=rect
|x=A, B, C
|y=1619, 0, 1381
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
== Score ==
B wins under [[Score Voting]] (with normalized ballots), as they are the highest-rated overall by the voters.
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Total score|type=rect
|x=A, B, C
|y=1391.735, 2206.151, 1251.829
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
== Condorcet ==
B also wins under [[Condorcet method|Condorcet methods]], as B would beat both A and C in head-to-head elections.
A vs B:
B also wins under [[STAR voting|STAR Voting]]. The top-two winners are A and B (since A is slightly closer to the center than C). B is then preferred over A by a 66% majority.▼
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Votes|type=rect
|x= A, B, C
|y= 1031, 1969, 0
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
B vs C:
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Votes|type=rect
|x= A, B, C
|y= 0, 1892, 1108
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
== STAR ==
▲B also wins under [[STAR voting|STAR Voting]]. The top-two winners are A and B (since A is slightly closer to the center than C).
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Total score|type=rect
|x=A, B, C
|y=1391.735, 2206.151, 1251.829
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
B is then preferred over A by a 66% majority.
{{Graph:Chart|width=200|height=150
|xAxisTitle=Candidates|yAxisTitle=Votes|type=rect
|x= A, B, C
|y= 1031, 1969, 0
|colors=#1f77b4, #ff7f0e, #2ca02c
}}
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