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Published
Edited
Aug 27, 2020
If "Rejected Votes" and "I didn't vote" were a partyAlternative Bus Map of ColomboPolice Divisions and Stations in Sri LankaSL Food PricesKings, Kingdoms and Royal Dynasties of Sri LankaSL Facebook Movement DataVariations on Proportional RepresentationPower Stations of Sri LankaPoverty in Sri LankaToilets for All Sri LankansDrinking Water in Sri LankaSL RegionsSL Census 2012SL ElectionsSri Lankan Cabinet - August 2020
How the JJB might have won 10 seats
Also listed in…
On Politics
md`# How the JJB might have won 10 seats`
{
let mdStr = md``;
await Promise.all(
ED_ID_LIST.map(async function(regionID) {
const partyToVotes = await getPartyToVotes(YEAR, regionID);
const totalVotes = sum(Object.values(partyToVotes));
const actualVotes = partyToVotes[PARTY] ? partyToVotes[PARTY] : 0;
let actualPartyToSeats = getPartyToSeats(YEAR, regionID, partyToVotes);
if (!actualPartyToSeats[PARTY]) {
actualPartyToSeats[PARTY] = 0;
}
const actualSeats = actualPartyToSeats[PARTY];
mdStr = md`${mdStr}
### ${getRegionLabel(regionID)}
*${actualSeats} seats, ${formatNumber(actualVotes)} votes, ${formatPercent(
actualVotes / totalVotes
)}*
`;
const INCR_VOTES = 100;
const MAX_EXTRA_SEATS = 3;
let prevHypoSeats = actualSeats;
let prevHypoVotes = actualVotes;
let hypoPartyToVotes = partyToVotes;
let i = 0;
while (true) {
i += 1;
if (i > 1000) {
break;
}
hypoPartyToVotes[PARTY] += INCR_VOTES;
const hypoPartyToSeats = getPartyToSeats(YEAR, regionID, partyToVotes);
const hypoSeats = hypoPartyToSeats[PARTY];
const hypoVotes = hypoPartyToVotes[PARTY];
const pExtra = (hypoVotes - actualVotes) / actualVotes;
if (pExtra > 0.5) {
break;
}
if (prevHypoSeats < hypoSeats) {
mdStr = md`${mdStr}
${hypoSeats} seats - another **${formatNumber(
hypoVotes - prevHypoVotes
)} votes (+${formatPercent(pExtra)})**, for a total of ${formatNumber(
hypoVotes
)} votes, ${formatPercent(
hypoVotes / (totalVotes - actualVotes + hypoVotes)
)}`;
prevHypoSeats = hypoSeats;
prevHypoVotes = hypoVotes;
}
if (hypoSeats - actualSeats >= MAX_EXTRA_SEATS) {
break;
}
}
})
);
return mdStr;
}
import { range, sum } from '@nuuuwan/list-utils'
import { formatPercent, formatNumber } from '@nuuuwan/string-utils'
import { getRegionLabel } from '@nuuuwan/sri-lanka-regions'
import {
ED_ID_LIST,
getPartyToVotes,
getPartyToSeats
} from '@nuuuwan/sl-elections'
YEAR = 2020
PARTY = 'JJB'
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