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36 lines
1.1 KiB
PHP
36 lines
1.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Phpml\Tests\Math\Kernel;
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use Phpml\Exception\InvalidArgumentException;
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use Phpml\Math\Kernel\RBF;
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use PHPUnit\Framework\TestCase;
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class RBFTest extends TestCase
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{
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public function testComputeRBFKernelFunction(): void
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{
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$rbf = new RBF($gamma = 0.001);
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self::assertEquals(1, $rbf->compute([1, 2], [1, 2]));
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self::assertEqualsWithDelta(0.97336, $rbf->compute([1, 2, 3], [4, 5, 6]), $delta = 0.0001);
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self::assertEqualsWithDelta(0.00011, $rbf->compute([4, 5], [1, 100]), $delta = 0.0001);
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$rbf = new RBF($gamma = 0.2);
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self::assertEquals(1, $rbf->compute([1, 2], [1, 2]));
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self::assertEqualsWithDelta(0.00451, $rbf->compute([1, 2, 3], [4, 5, 6]), $delta = 0.0001);
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self::assertEquals(0, $rbf->compute([4, 5], [1, 100]));
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}
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public function testThrowExceptionWhenComputeArgumentIsNotAnArray(): void
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{
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$this->expectException(InvalidArgumentException::class);
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$this->expectExceptionMessage('Arguments of Phpml\\Math\\Kernel\\RBF::compute must be arrays');
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(new RBF(0.1))->compute([0], 1.0);
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}
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}
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