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x/simplestatistics/test/t_test_two_sample.test.js

simple statistics for node & browser javascript
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/* eslint no-shadow: 0 */
const test = require("tap").test;const ss = require("../dist/simple-statistics.js");
test("tTestTwoSample", function (t) { t.test("can test independency of two samples", function (t) { const res = ss.tTestTwoSample([1, 2, 3, 4], [3, 4, 5, 6], 0); t.equal(res, -2.1908902300206643); t.end(); });
t.test("can test independency of two samples (mu == -2)", function (t) { const res = ss.tTestTwoSample([1, 2, 3, 4], [3, 4, 5, 6], -2); t.equal(res, 0); t.end(); });
t.test( "can test independency of two samples of different lengths", function (t) { const res = ss.tTestTwoSample([1, 2, 3, 4], [3, 4, 5, 6, 1, 2, 0]); t.equal(res, -0.4165977904505309); t.end(); } );
t.test("has an edge case for one sample being of size zero", function (t) { t.equal(ss.tTestTwoSample([1, 2, 3, 4], []), null); t.equal(ss.tTestTwoSample([], [1, 2, 3, 4]), null); t.equal(ss.tTestTwoSample([], []), null); t.end(); });
t.end();});