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81 lines
2.5 KiB
PHP
Executable File
81 lines
2.5 KiB
PHP
Executable File
<?php
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/**
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* Jingga
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*
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* PHP Version 8.2
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*
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* @package tests
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* @copyright Dennis Eichhorn
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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declare(strict_types=1);
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namespace phpOMS\tests\Math\Stochastic\Distribution;
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use phpOMS\Math\Stochastic\Distribution\WeibullDistribution;
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/**
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* @internal
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*/
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#[\PHPUnit\Framework\Attributes\CoversClass(\phpOMS\Math\Stochastic\Distribution\WeibullDistribution::class)]
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final class WeibullDistributionTest extends \PHPUnit\Framework\TestCase
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{
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testPdf() : void
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{
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self::assertEqualsWithDelta(0.213668559, WeibullDistribution::getPdf(3, 4, 2), 0.001);
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self::assertEqualsWithDelta(0.0, WeibullDistribution::getPdf(-1, 4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testCdf() : void
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{
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self::assertEqualsWithDelta(0.430217175, WeibullDistribution::getCdf(3, 4, 2), 0.001);
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self::assertEqualsWithDelta(0.0, WeibullDistribution::getCdf(-1, 4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testMean() : void
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{
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self::assertEqualsWithDelta(3.54490771, WeibullDistribution::getMean(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testMedian() : void
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{
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self::assertEqualsWithDelta(3.33021844, WeibullDistribution::getMedian(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testMode() : void
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{
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self::assertEqualsWithDelta(2.82842712, WeibullDistribution::getMode(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testVariance() : void
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{
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self::assertEqualsWithDelta(3.43362932, WeibullDistribution::getVariance(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testStandardDeviation() : void
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{
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self::assertEqualsWithDelta(\sqrt(3.43362932), WeibullDistribution::getStandardDeviation(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testEntropy() : void
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{
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self::assertEqualsWithDelta(1.981755, WeibullDistribution::getEntropy(4, 2), 0.001);
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}
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#[\PHPUnit\Framework\Attributes\Group('framework')]
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public function testSkewness() : void
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{
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self::assertEqualsWithDelta(0.631110, WeibullDistribution::getSkewness(4, 2), 0.001);
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}
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}
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