User:BetterVotingAdvocacy/Negative vote-counting approach for pairwise counting: Difference between revisions
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[[File:Adding ballot matrices in negative pairwise counting approach.png|thumb|1088x1088px|[[File:Pairwise counting negative counting with ranked ballot GIF.gif|thumb|454x454px|GIF for negative counting. Click on the image and then the thumbnail of the image to see the animation.]]]]
The negative counting approach is an alternative method of doing [[pairwise counting]]. It is faster, depending on implementation, when voters don't rank all of the candidates (or when they rank multiple candidates last), because it takes advantage of the fact that in most ranked voting elections, voters are assumed to prefer every candidate they ranked over every candidate they left unranked.
== Description ==
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==== Write-in candidates ====
This advice is less relevant when write-ins are allowed, however, because even if a voter ranks a candidate last among the candidates named on their ballot, they are still implicitly ranking that candidate above all of the write-in candidates they didn't rank on their ballot. So if last-ranked candidates aren't counted, then it may be necessary to modify how the calculation is done to avoid giving the impression that the vote totals are accurate for the matchups involving write-in candidates.
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== Comparison to other vote-counting procedures ==
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