| 1 | 'use strict';
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| 2 |
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| 3 | var expect = require('chai').expect;
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| 4 | var SigmoidKernel = require('./sigmoid.js');
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| 5 |
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| 6 | describe('Kernel.SigmoidKernel', function () {
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| 7 | describe('.apply', function () {
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| 8 | it('should calculate the Sigmoid kernel with gamma 0.01 and no bias when called with default parameters', function () {
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| 9 | expect(new SigmoidKernel().apply([1, 2], [3, 4])).to.closeTo(0.10955847021, 1e-5);
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| 10 | });
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| 11 |
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| 12 | it('should correctly calculate the Sigmoid kernel with custom parameters', function () {
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| 13 | var kernel = new SigmoidKernel({
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| 14 | gamma: 0.1,
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| 15 | coef0: 1
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| 16 | });
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| 17 | expect(kernel.apply([1, 2], [3, 4])).to.closeTo(0.97045193661, 1e-5);
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| 18 | });
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| 19 | });
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| 20 | }); |
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