Summer 2022
The Coffee Experiment
Mapping M1:
Should be PIS, but I misread “pisces” as “pices”. Oops!
Pairings:
${IDENT} ${A or B}
He will choose randomly from the box and make 1 pairing each day. He will keep track of which IDENT was chosen each day. I will record my experience of the pairing knowing the current date but not the IDENT. This way, neither of us ever know what coffee we’re drinking until the experiment concludes.
const signs = 'AQU PIC ARI TAU GEM CAN LEO VIR LIB SCO SAG CAP'.split(' ');
function index(sign) {
const idx = signs.indexOf(sign);
if (idx === -1) throw 'oops';
return idx;
}
function mod(n, m) {
return ((n % m) + m) % m;
}
function direction({ from, to }) {
const diff = mod( index(to) - index(from), 12 );
if (diff === 0 || diff === 6)
return 'none';
if (diff <= 5)
return 'cw';
if (diff >= 7)
return 'ccw';
throw diff;
}
const pairings = [];
for (let i = 0; i < signs.length; i++) {
for (let j = i + 1; j < signs.length; j++) {
const s1 = signs[i];
const s2 = signs[j];
const dir = direction({ from: s1, to: s2 });
const [A, B] = (
dir === 'none'
? (Math.random() < 0.5 ? [s1, s2] : [s2, s1])
: dir === 'cw'
? [s1, s2]
: dir === 'ccw'
? [s2, s1]
: null
);
pairings.push([A, B]);
}
}
function shuffle(array) {
let currentIndex = array.length, randomIndex;
while (currentIndex != 0) {
randomIndex = Math.floor(Math.random() * currentIndex);
currentIndex--;
[array[currentIndex], array[randomIndex]] = [
array[randomIndex], array[currentIndex]];
}
return array;
}
const idxs = pairings.map((_, i) => i + 1);
const idxsr = shuffle([...idxs]);
const sf = i => ('' + i).padStart(2, '0');
for (let i = 0; i < pairings.length; i++) {
const [A, B] = pairings[i];
console.log(sf(idxs[i]), sf(idxsr[i]), A, B);
}
{
const counts = {};
for (const sign of signs)
counts[sign] = { A: 0, B: 0 };
for (const [A, B] of pairings) {
counts[A].A++;
counts[B].B++;
}
for (const sign of signs) {
console.log(
sign,
counts[sign].A,
counts[sign].B,
counts[sign].A + counts[sign].B,
);
}
}