StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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26 lines
631 B
26 lines
631 B
4 years ago
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var test = require('tape');
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var gamma = require('../');
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test('integrate', function (t) {
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// gamma(z) = integral(0, inf, e^(-t)*t^(z - 1))
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var zs = [ 0.84, 1.31, 2.54, 3.01, 5.2, 6.1 ];
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for (var i = 0; i < zs.length; i++) {
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// integration by rectangles
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var res = 0;
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var dx = 0.0001;
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for (var x = 0.000001; x < 40; x += dx) {
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res += Math.exp(-x) * Math.pow(x, zs[i] - 1) * dx;
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}
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t.equal(
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Math.round(res * 10) / 10,
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Math.round(gamma(zs[i]) * 10) / 10,
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'z = ' + zs[i]
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);
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}
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t.end();
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});
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