Sessions 5-7a: 955 tests, deployment ready

2026-06-08 18:35:13 -04:00
parent 06b82624a2
commit 1fa04dc776
371 changed files with 49366 additions and 955 deletions
@@ -0,0 +1,22 @@
+function phiCoefficient(p11, p10, p01, p00) {
+  const n = p11 + p10 + p01 + p00;
+  if (n === 0) return 0;
+  const p1plus = p11 + p10;
+  const pplus1 = p11 + p01;
+  const p0plus = p01 + p00;
+  const pplus0 = p10 + p00;
+  const denom = Math.sqrt(p1plus * pplus1 * p0plus * pplus0);
+  if (denom === 0) return 0;
+  return (p11 * p00 - p10 * p01) / denom;
+}
+
+function hasMinimumObservations(sampleSize, minimum = 100) {
+  return sampleSize >= minimum;
+}
+
+function calculateJuiceAdjustedEV(modelProb, stake = 110) {
+  const payout = 100;
+  return (modelProb * payout) - ((1 - modelProb) * stake);
+}
+
+module.exports = { phiCoefficient, hasMinimumObservations, calculateJuiceAdjustedEV };