php-ml/tests/FeatureSelection/ScoringFunction/UnivariateLinearRegressionTest.php
Marcin Michalski db82afa263 Update to phpunit 8 and bump min php to 7.2 (#367)
* Update to phpunit 8

* Require at least PHP 7.2
2019-04-10 20:42:59 +02:00

30 lines
1.3 KiB
PHP

<?php
declare(strict_types=1);
namespace Phpml\Tests\FeatureSelection\ScoringFunction;
use Phpml\FeatureSelection\ScoringFunction\UnivariateLinearRegression;
use PHPUnit\Framework\TestCase;
final class UnivariateLinearRegressionTest extends TestCase
{
public function testRegressionScore(): void
{
$samples = [[73676, 1996], [77006, 1998], [10565, 2000], [146088, 1995], [15000, 2001], [65940, 2000], [9300, 2000], [93739, 1996], [153260, 1994], [17764, 2002], [57000, 1998], [15000, 2000]];
$targets = [2000, 2750, 15500, 960, 4400, 8800, 7100, 2550, 1025, 5900, 4600, 4400];
$function = new UnivariateLinearRegression();
self::assertEqualsWithDelta([6.97286, 6.48558], $function->score($samples, $targets), 0.0001);
}
public function testRegressionScoreWithoutCenter(): void
{
$samples = [[73676, 1996], [77006, 1998], [10565, 2000], [146088, 1995], [15000, 2001], [65940, 2000], [9300, 2000], [93739, 1996], [153260, 1994], [17764, 2002], [57000, 1998], [15000, 2000]];
$targets = [2000, 2750, 15500, 960, 4400, 8800, 7100, 2550, 1025, 5900, 4600, 4400];
$function = new UnivariateLinearRegression(false);
self::assertEqualsWithDelta([1.74450, 18.08347], $function->score($samples, $targets), 0.0001);
}
}