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REP Council Member_15th Council District (NYC; 2021-06-22)

🔗 2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District     (tags: { 2021 , from-bolson , actual , NY , NYC-2021 , NYC_NY , 2021-06 })

Below is the ABIF from the "2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District" election (REP Council Member_15th Council District (NYC; 2021-06-22))

ABIF submission area (show)
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Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

Results

🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District

Below are the results of the election represented above using various election methods with abiftool/abiflib. The detected ballot type from the ABIF above is "ranked". Some methods may transform these ballots for analysis; see method notices for details. Resubmit the ABIF with "Transform ballots" turned off to minimize the transformations.

Method Winner
IRV/RCV Ariel Rivera-Diaz
FPTP Ariel Rivera-Diaz
Approval Ariel Rivera-Diaz
STAR Ariel Rivera-Diaz
Condorcet/Copeland Ariel Rivera-Diaz
Election results summary showing voting method winners
click/tap to expand
tabbed view

IRV/RCV results

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District IRV/RCV result permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/IRV#IRV

  • IRV/RCV Winner: Ariel Rivera-Diaz with 83 votes (55.0%) in final round
  • Runner-up: Aramis Ocasio with 68 votes (45.0%) in final round
  • Exhausted ballots in final round: 0 (0.0%)
  • Number of rounds: 1
  • Ballots counted in final round: 151 (100.0%)
  • Majority of ballots: 76 (50.3%)
  • Total ballots: 151
Round 1
Overview:
Active ballots: 151 (100.0%)

Exhausted ballots: 0 (0.0%)
Counted ballots: 151 (100.0%)
IRV/RCV winner:
Ariel Rivera-Diaz: 83 (55.0%)✅
→
Aramis Ocasio: 68 (45.0%) (🛑eliminated)
→

FPTP result

"FPTP" is "First-past-the-post", also known as "plurality" or "choose-one"
2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District FPTP results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/FPTP#FPTP
📝
Note — Only using first-choices on ranked ballots

  • FPTP Winner: Ariel Rivera-Diaz with 83 first-place votes (55.0%)
  • Runner-up: Aramis Ocasio with 68 first-place votes (45.0%)
  • Margin of victory: 15 votes (9.9 percentage points)
  • First-place votes
    • Ariel Rivera-Diaz: 83 votes (55.0 %)
    • Aramis Ocasio: 68 votes (45.0 %)
  • Total ballots: 151

Approval voting results

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District approval voting results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/approval#approval
📝
Note — Approval counts estimated from 151 ranked ballots using favorite_viable_half method
Details

The 'favorite_viable_half' conversion algorithm: find the candidate with the most first preferences, and then determine the minimum number of figurative seats that would need to be open in order for the candidate to exceed the Hare quota with the given first-prefs. We use this to estimate how many candidates are likely to be viable candidates.

Using first-choice vote totals as a rough guide, approximately 2 candidates appear viable: Ariel Rivera-Diaz and Aramis Ocasio. The approximation then assumes each voter approves up to 1 of their top-ranked viable candidates (half of 2). All candidates ranked at or above the lowest-ranked of each ballot's top viable candidates receive approval (considering up to 1 viable candidates per ballot).

See transformed ballots

Note: For Approval, these choose_many ballots are inferred from ranked ballots.

Conversion method: favorite_viable_half

#------- metadata -------
{ballotcount: 151}
{version: "0.1"}
{ballotcount_abif_metadata: "151"}
{is_ranking_to_rating: true}
#------ candlines ------
=[Ariel Rivera-Diaz]:[Ariel Rivera-Diaz]
=[Aramis Ocasio]:[Aramis Ocasio]
#------- votelines ------
39:[Ariel Rivera-Diaz]/1
33:[Aramis Ocasio]/1
31:[Ariel Rivera-Diaz]/1
23:[Aramis Ocasio]/1
5:[Aramis Ocasio]/1
5:[Ariel Rivera-Diaz]/1
4:[Ariel Rivera-Diaz]/1
3:[Ariel Rivera-Diaz]/1
3:[Aramis Ocasio]/1
3:[Aramis Ocasio]/1
1:[Aramis Ocasio]/1
1:[Ariel Rivera-Diaz]/1
  • Approval Winner: Ariel Rivera-Diaz
  • Approval Results:
    • Ariel Rivera-Diaz — 83 approvals (54.97% of ballots) (✅ winner)
    • Aramis Ocasio — 68 approvals (45.03% of ballots)
  • Total: 151 ballots (151 total approvals)

STAR results

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District STAR results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/STAR#STAR
📝
Note — STAR ratings estimated from ranked ballots using Borda scoring method
Details

The ranked ballots have been converted to STAR ratings using Borda scoring: each candidate receives points equal to (number_of_candidates - their_rank). In this election, we have 2 candidates, so the 1st choice gets 1 points, the 2nd choice gets 0 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

  • STAR winner: Ariel Rivera-Diaz
  • Finalists: Ariel Rivera-Diaz vs Aramis Ocasio
  • Runoff result:
    • Ariel Rivera-Diaz: 83 votes (55.0%)
    • Aramis Ocasio: 68 votes (45.0%)
    • No preference: 0 voters (0.0%)
  • Total stars allocated: 151
  • Total ballots: 151
★★★★★★

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(one star above is approximately 3 stars allocated by voters)
  • First round:
    • ★#0: Ariel Rivera-Diaz received 83 stars (55.0%) from 83 voters (55.0%)
    • ★#1: Aramis Ocasio received 68 stars (45.0%) from 68 voters (45.0%)
  • Finalists:
    • ★Ariel Rivera-Diaz (✅ winner) preferred by 83 of 151 voters
    • ★Aramis Ocasio preferred by 68 of 151 voters
    • ★No preference between the finalists: 0

NOTE: Since ratings or stars are not present in the provided ballots, allocated stars are estimated using a Borda-like formula.

Condorcet/Copeland results

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District Condorcet/Copeland results permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/pairwise#pairwise
  • Winner: Ariel Rivera-Diaz
  • Runner-up: Aramis Ocasio (beats all other candidates except Ariel Rivera-Diaz)
  • Smallest margin: Ariel Rivera-Diaz over Aramis Ocasio (83-68; margin: 15)
  • Largest margin: Ariel Rivera-Diaz over Aramis Ocasio (83-68; margin: 15)
  • Pairwise ties: none
  • Total ballots: 151

Win-loss-tie (Condorcet/Copeland) table

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District w-l-t table permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/pairwise#wlt
REP Council Member_15th Council District (NYC; 2021-06-22) pairwise matchups
Ariel Rivera-Diaz
(1-0-0)
Ariel Rivera-Diaz
1 victory ⇣
Aramis Ocasio
(0-1-0)
Ariel Rivera-Diaz: 83(55.0%)
Aramis Ocasio: 68(45.0%)
(No preference: 0; 0.0%)

Pairwise tournament (Copeland ordered)

2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District pairwise diagram permalink:
🔗https://abif.electorama.com/id/2021-06-22_NYC-PE2021_CVR_Final-REP_Council_Member_15th_Council_District/pairwise#dot

%3 Ariel Rivera-Diaz Ariel Rivera-Diaz 1-0-0 (1 wins, 0 losses, 0 ties) Aramis Ocasio Aramis Ocasio 0-1-0 Ariel Rivera-Diaz->Aramis Ocasio ← Ariel Rivera-Diaz: 83 Aramis Ocasio: 68

Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

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