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31 lines
715 B
PHP
31 lines
715 B
PHP
<?php
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/**
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* Orange Management
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*
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* PHP Version 7.2
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*
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* @package tests
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* @copyright Dennis Eichhorn
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* @license OMS License 1.0
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* @version 1.0.0
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* @link http://website.orange-management.de
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*/
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namespace phpOMS\tests\Math\Statistic\Forecast\Regression;
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use phpOMS\Math\Statistic\Forecast\Regression\LogLevelRegression;
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class LogLevelRegressionTest extends \PHPUnit\Framework\TestCase
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{
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public function testRegression()
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{
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// ln(y) = -1 + 2 * x => y = e^(-1 + 2 * x)
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$x = [0.25, 0.5, 1, 1.5];
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$y = [0.6065, 1, 2.718, 7.389];
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$reg = LogLevelRegression::getRegression($x, $y);
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self::assertEquals(['b0' => -1, 'b1' => 2], $reg, '', 0.2);
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}
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}
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