A count allows you to obtain election results for ballots you
have obtained in other ways (e.g., paper ballots or another electronic voting
system). You can choose a variety of counting methods, such as instant runoff
voting, the single transferable vote, and Condorcet voting.
Counts have two stages: EDITING and END.
During the EDITING stage, you provide the ballots and specify the counting
method. Once you progress to the END stage you cannot change the ballots
so double check to make sure the ballots have been uploaded correctly.
At the END stage, you can see the election results with your chosen
counting method. You can also recount the votes with a different counting
Some counting methods have options, and these options are described here:
- Candidate Elimination — With RCV counting methods, candidates
with the smallest number of votes are eliminated. This can be done in several
- Single — Candidates are always eliminated one at a time.
- Zero — The first time that candidates are eliminated, all candidates
with zero votes are eliminated simultaneously. Afterwards, candidates are
eliminated one by one.
- Losers — All candidates who cannot win the election are eliminated
simultaneously. At a given round of counting, one can look at the distribution
of votes, and determine mathematically which candidates still have a chance
of winning and which candidates cannot possibly win.
- Tie Breaking — As with any election, ties may occur in RCV
elections. Ties may occur when selecting candidates to eliminate, selecting
surplus votes for transfer, or selecting winners. Several options for
breaking ties are available.
- Random — The tie is broken randomly (like flipping a coin).
- Backward — The vote count at the previous round is used to break the
tie. Suppose we are selecting a candidate to eliminate at round 4 and Alice
and Bob are tied for last place. The tie would be broken by comparing Alice
and Bob's vote counts at round 3. If they are still tied at round 3, then round
2 is used and so forth. If the candidates are tied at all rounds, then the
tie is broken randomly.
- Forward — The vote count at round 1 is used to break the tie. Suppose
we are selecting a candidate to eliminate at round 4 and Alice and Bob are tied
for last place. The tie would be broken by comparing Alice and Bob's vote counts
at round 1. If they are tied at round 1, then round 2 is used and so forth.
If the candidates are tied at all rounds, then the tie is broken randomly.
- Precision — Some STV methods use fractional votes. To use
fractional votes, a precision (the number of digits after the decimal point)
must be specified.
- Fractional Threshold — STV methods have a winning threshold
(the Droop quota).
A candidate who reaches this threshold is declared elected. The winning
threshold may be a whole number (to simplify the results) or a fraction (to
obtain more precision, which may be useful with a small number of voters).
- Dynamic Threshold — The winning threshold in an STV election
may be static or dynamic. A static threshold is determined at the beginning of
the election and does not change. A dynamic threshold is computed at each round
and may decrease as votes become exhausted (when votes do not count towards any
candidate because the voter did not rank all of the candidates).
- Delay Surplus Transfer — At each round of an STV count, it is
decided whether to eliminate a candidate or to transfer suplus votes.
- Off — Transferring surplus votes is not delayed. At each round, if
any candidate has a surplus, then surplus votes are transferred in the round.
Candidates are only eliminated if no candidates have surplus votes.
- On — Transferring surplus votes is delayed if there is a canddiate in
the election who cannot win (see Candidate Elimination above). At each round,
the decision proceeds in three steps: (i) if there are candidates who cannot
win, then those candidates are eliminated, (ii) if all candidates could still
win, then surplus votes are transferred, and (iii) if there are no surplus
votes, then the last place candidate is eliminated. Delaying transfers of
surplus votes simplifies the counting process because transferring surplus votes
requires splitting votes into fractions and eliminating candidates does not.
- Ballot Completion — This is only for the Borda Count. With
the Borda Count, voters have incentive to rank only their first choice
candidate so the second choice cannot cause the first choice to lose. Turning
ballot completion on reduces this incentive. With ballot completion, a ballot
that ranks fewer than all the candidates (an incomplete ballot) is completed
by adding the remaining candidates. For example, if there are 5 candidates
running and a voter specifies only a first choice, the other four candidates
will be added to the ballot as all tied for second.