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Add pairwise independence test, tweak randOffset

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This commit is contained in:
Ian Clester 2023-03-20 22:27:35 -04:00
parent c98b0e9687
commit 4e2a5e1663
2 changed files with 18 additions and 3 deletions
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2
packages/mini/mini.mjs
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@ -7,7 +7,7 @@ This program is free software: you can redistribute it and/or modify it under th
import * as krill from './krill-parser.js';
import * as strudel from '@strudel.cycles/core';
const randOffset = 0.0002;
const randOffset = 0.0003;
const applyOptions = (parent, code) => (pat, i) => {
const ast = parent.source_[i];

19
packages/mini/test/mini.test.mjs
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@ -140,8 +140,20 @@ describe('mini', () => {
expect(haps.length < 230).toBe(true);
// 'Had too many cycles remaining after degradeBy 0.8');
});
it('supports lists', () => {
expect(minV('a:b c:d:[e:f] g')).toEqual([['a', 'b'], ['c', 'd', ['e', 'f']], 'g']);
it('supports multiple independent uses of the random choice operator ("|")', () => {
const numCycles = 1000;
const values = mini('[a|b] [a|b]')
.queryArc(0, numCycles)
.map((e) => e.value);
const observed = { aa: 0, ab: 0, ba: 0, bb: 0 };
for (let i = 0; i < values.length; i += 2) {
const chunk = values.slice(i, i + 2);
observed[chunk.join('')]++;
}
for (const count of Object.values(observed)) {
// Should fall within 99% confidence interval for binomial with p=0.25.
expect(215 <= count && count <= 286).toBe(true);
}
});
it('supports the random choice operator ("|") with nesting', () => {
const numCycles = 900;
@ -169,4 +181,7 @@ describe('mini', () => {
// PRNG, this test should succeed
expect(chisq <= 15.086).toBe(true);
});
it('supports lists', () => {
expect(minV('a:b c:d:[e:f] g')).toEqual([['a', 'b'], ['c', 'd', ['e', 'f']], 'g']);
});
});