Anti-Harassment Tools/SecurePoll Improvements/Test Results/20 6 5000 751478367
Comments
editCase: All but one seat filled, two hopeful candidates.
Output of OpenSTV and SecurePoll agree.
Election setup
edit- Candidates: 20
- Seats: 6
- Votes: 5000
Actual
editOutput from SecurePoll (var_dump( $this->tallier->resultsLog );):
array(3) {
["elected"]=>
array(6) {
[0]=>
int(2)
[1]=>
int(4)
[2]=>
int(6)
[3]=>
int(8)
[4]=>
int(19)
[5]=>
int(17)
}
["eliminated"]=>
array(0) {
}
["rounds"]=>
array(3) {
[0]=>
array(8) {
["round"]=>
int(1)
["surplus"]=>
int(0)
["rankings"]=>
array(20) {
[1]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[2]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(857)
["total"]=>
int(857)
}
[3]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[4]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(857)
["total"]=>
int(857)
}
[5]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[6]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(858)
["total"]=>
int(858)
}
[7]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[8]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(857)
["total"]=>
int(857)
}
[9]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[10]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[11]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[12]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(314)
["total"]=>
int(314)
}
[13]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[14]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[15]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[16]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[17]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(400)
["total"]=>
int(400)
}
[18]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[19]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(857)
["total"]=>
int(857)
}
[20]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
}
["totalVotes"]=>
int(5000)
["keepFactors"]=>
array(20) {
[1]=>
int(1)
[2]=>
int(1)
[3]=>
int(1)
[4]=>
int(1)
[5]=>
int(1)
[6]=>
int(1)
[7]=>
int(1)
[8]=>
int(1)
[9]=>
int(1)
[10]=>
int(1)
[11]=>
int(1)
[12]=>
int(1)
[13]=>
int(1)
[14]=>
int(1)
[15]=>
int(1)
[16]=>
int(1)
[17]=>
int(1)
[18]=>
int(1)
[19]=>
int(1)
[20]=>
int(1)
}
["quota"]=>
int(715)
["elected"]=>
array(0) {
}
["eliminated"]=>
array(0) {
}
}
[1]=>
array(8) {
["round"]=>
int(2)
["elected"]=>
array(5) {
[0]=>
int(2)
[1]=>
int(4)
[2]=>
int(6)
[3]=>
int(8)
[4]=>
int(19)
}
["eliminated"]=>
array(0) {
}
["surplus"]=>
int(711)
["keepFactors"]=>
array(20) {
[1]=>
int(1)
[2]=>
int(1)
[3]=>
int(1)
[4]=>
int(1)
[5]=>
int(1)
[6]=>
int(1)
[7]=>
int(1)
[8]=>
int(1)
[9]=>
int(1)
[10]=>
int(1)
[11]=>
int(1)
[12]=>
int(1)
[13]=>
int(1)
[14]=>
int(1)
[15]=>
int(1)
[16]=>
int(1)
[17]=>
int(1)
[18]=>
int(1)
[19]=>
int(1)
[20]=>
int(1)
}
["quota"]=>
int(715)
["rankings"]=>
array(20) {
[1]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[2]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
int(0)
["total"]=>
int(857)
}
[3]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[4]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
int(0)
["total"]=>
int(857)
}
[5]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[6]=>
array(3) {
["votes"]=>
int(858)
["earned"]=>
int(0)
["total"]=>
int(858)
}
[7]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[8]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
int(0)
["total"]=>
int(857)
}
[9]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[10]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[11]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[12]=>
array(3) {
["votes"]=>
int(314)
["earned"]=>
int(0)
["total"]=>
int(314)
}
[13]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[14]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[15]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[16]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[17]=>
array(3) {
["votes"]=>
int(400)
["earned"]=>
int(0)
["total"]=>
int(400)
}
[18]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[19]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
int(0)
["total"]=>
int(857)
}
[20]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
}
["totalVotes"]=>
int(5000)
}
[2]=>
array(8) {
["round"]=>
int(3)
["elected"]=>
array(1) {
[4]=>
int(17)
}
["eliminated"]=>
array(0) {
}
["surplus"]=>
float(335)
["keepFactors"]=>
array(20) {
[1]=>
int(1)
[2]=>
float(0.8343057176196)
[3]=>
int(1)
[4]=>
float(0.8343057176196)
[5]=>
int(1)
[6]=>
float(0.83333333333333)
[7]=>
int(1)
[8]=>
float(0.8343057176196)
[9]=>
int(1)
[10]=>
int(1)
[11]=>
int(1)
[12]=>
int(1)
[13]=>
int(1)
[14]=>
int(1)
[15]=>
int(1)
[16]=>
int(1)
[17]=>
int(1)
[18]=>
int(1)
[19]=>
float(0.8343057176196)
[20]=>
int(1)
}
["quota"]=>
int(654)
["rankings"]=>
array(20) {
[1]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[2]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
float(-142)
["total"]=>
float(715)
}
[3]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[4]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
float(-142)
["total"]=>
float(715)
}
[5]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[6]=>
array(3) {
["votes"]=>
int(858)
["earned"]=>
float(-143)
["total"]=>
float(715)
}
[7]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[8]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
float(-142)
["total"]=>
float(715)
}
[9]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[10]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[11]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[12]=>
array(3) {
["votes"]=>
int(314)
["earned"]=>
int(0)
["total"]=>
int(314)
}
[13]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[14]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[15]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[16]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[17]=>
array(3) {
["votes"]=>
int(400)
["earned"]=>
float(284)
["total"]=>
float(684)
}
[18]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
[19]=>
array(3) {
["votes"]=>
int(857)
["earned"]=>
float(-142)
["total"]=>
float(715)
}
[20]=>
array(3) {
["votes"]=>
int(0)
["earned"]=>
int(0)
["total"]=>
int(0)
}
}
["totalVotes"]=>
float(4573)
}
}
}
Actual tally: SP 3.0.0 (58bf4c8)
editElected
editElection for 6 seats with 20 candidates. Total 5,000 votes.
- "2"
- "4"
- "6"
- "8"
- "19"
- "17"
Eliminated/Not elected
edit- "12"
- "10"
- "15"
- "5"
- "1"
- "3"
- "7"
- "9"
- "11"
- "13"
- "14"
- "16"
- "18"
- "20"
Rounds table
editThe following table describes the calculations that happened in order to achieve the result above. In each round of calculation, the candidate(s) who achieved more votes than the quota are declared elected. Their surplus votes above the quota are redistributed to the remaining candidates. If nobody achieves the quota, the lowest ranking candidate is eliminated and their votes are redistributed to the remaining candidates. To understand this better, please refer to this link.
| Round Number | Tally | Result |
|---|---|---|
| 1 |
|
Quota: 714.285715 |
| 2 |
|
Quota: 714.285715
Elected: "2", "4", "6", "8", "19" |
| 3 |
|
Quota: 714.285715
Eliminated: "12", "10", "15", "5" Transferring votes |
| 4 |
|
Quota: 714.285715
Elected: "17" Transferring votes |
(Results from 14:25, 31 August 2021)
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Expected
editOutput from OpenSTV:
Loading ballots from file 20_6_5000_751478367.blt. Ballot file contains 20 candidates and 5000 ballots. No candidates have withdrawn. Ballot file contains 5000 non-empty ballots. Counting votes for ElectionTitle using Meek STV. 20 candidates running for 6 seats. R|1 |2 |3 |4 |5 |6 |-----------+-----------+-----------+-----------+-----------+----------- |7 |8 |9 |10 |11 |12 |-----------+-----------+-----------+-----------+-----------+----------- |13 |14 |15 |16 |17 |18 |-----------+-----------+-----------+-----------+-----------+----------- |19 |20 |Exhausted |Surplus |Threshold ========================================================================== 1| 0.000000| 857.000000| 0.000000| 857.000000| 0.000000| 858.000000 | 0.000000| 857.000000| 0.000000| 0.000000| 0.000000| 314.000000 | 0.000000| 0.000000| 0.000000| 0.000000| 400.000000| 0.000000 | 857.000000| 0.000000| 0.000000| 714.571425| 714.285715 |----------------------------------------------------------------------- | Count of first choices. Candidates 2, 4, 6, 8, and 19 have reached the | threshold and are elected. ========================================================================== 2| | 714.286361| | 714.286361| | 714.285858 | | 714.286361| | | | 314.000000 | | | | | 685.427278| | 714.286361| | 429.141420| 338.979792| 652.979798 |----------------------------------------------------------------------- | Count after transferring surplus votes. Keep factors of candidates who | have exceeded the threshold: 2, 0.833473; 4, 0.833473; 6, 0.832501; 8, | 0.833473; and 19, 0.833473. Candidate 17 has reached the threshold and | is elected. Winners are 2, 4, 6, 8, 17, and 19.
Files
edit- blt: https://github.com/dominic998/SecurePoll-Test-Data/blob/main/test_data/20_6_5000_751478367.blt
- php:
array (
12 =>
array (
'count' => 314,
'rank' =>
array (
1 => 12,
),
),
17 =>
array (
'count' => 400,
'rank' =>
array (
1 => 17,
),
),
'2_17' =>
array (
'count' => 857,
'rank' =>
array (
1 => 2,
2 => 17,
),
),
19 =>
array (
'count' => 857,
'rank' =>
array (
1 => 19,
),
),
'4_17' =>
array (
'count' => 857,
'rank' =>
array (
1 => 4,
2 => 17,
),
),
8 =>
array (
'count' => 857,
'rank' =>
array (
1 => 8,
),
),
6 =>
array (
'count' => 858,
'rank' =>
array (
1 => 6,
),
),
)
Environment
edit- Where you tested: local docker using phpunit
- Version of SecurePoll: commit 271145d5f3cae3b0a1b76d0f5dfeb609615d60b7 (patch 16 from https://gerrit.wikimedia.org/r/c/mediawiki/extensions/SecurePoll/+/704454/)