39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
var test = require('tape'),
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ss = require('../');
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test('t test', function(t) {
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test('can compare a known value to the mean of samples', function(t) {
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var res = ss.t_test([1, 2, 3, 4, 5, 6], 3.385);
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t.equal(res, 0.1649415480881466);
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t.end();
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});
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test('can test independency of two samples', function(t) {
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var res = ss.t_test_two_sample([1, 2, 3, 4], [3, 4, 5, 6], 0);
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t.equal(res, -2.1908902300206643);
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t.end();
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});
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test('can test independency of two samples (mu == -2)', function(t) {
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var res = ss.t_test_two_sample([1, 2, 3, 4], [3, 4, 5, 6], -2);
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t.equal(res, 0);
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t.end();
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});
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test('can test independency of two samples of different lengths', function(t) {
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var res = ss.t_test_two_sample([1, 2, 3, 4], [3, 4, 5, 6, 1, 2, 0]);
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t.equal(res, -0.4165977904505309);
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t.end();
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});
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test('has an edge case for one sample being of size zero', function(t) {
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t.equal(ss.t_test_two_sample([1, 2, 3, 4], []), null);
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t.equal(ss.t_test_two_sample([], [1, 2, 3, 4]), null);
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t.equal(ss.t_test_two_sample([], []), null);
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t.end();
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});
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t.end();
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});
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