27 lines
747 B
JavaScript
27 lines
747 B
JavaScript
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var test = require('tape');
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var ss = require('../');
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test('median absolute deviation (mad)', function(t) {
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test('median absolute deviation of an example on wikipedia', function(t) {
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t.equal(ss.mad([1, 1, 2, 2, 4, 6, 9]), 1);
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t.end();
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});
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// wolfram alpha: median absolute deviation {0,1,2,3,4,5,6,7,8,9,10}
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test('median absolute deviation of 0-10', function(t) {
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t.equal(ss.mad([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]), 3);
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t.end();
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});
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test('median absolute deviation of one number is zero', function(t) {
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t.equal(ss.mad([1]), 0);
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t.end();
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});
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test('zero-length corner case', function(t) {
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t.equal(ss.mad([]), 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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