php-ml/tests/Phpml/Clustering/FuzzyCMeansTest.php
Tomáš Votruba 726cf4cddf Added EasyCodingStandard + lots of code fixes (#156)
* travis: move coveralls here, decouple from package

* composer: use PSR4

* phpunit: simpler config

* travis: add ecs run

* composer: add ecs dev

* use standard vendor/bin directory for dependency bins, confuses with local bins and require gitignore handling

* ecs: add PSR2

* [cs] PSR2 spacing fixes

* [cs] PSR2 class name fix

* [cs] PHP7 fixes - return semicolon spaces, old rand functions, typehints

* [cs] fix less strict typehints

* fix typehints to make tests pass

* ecs: ignore typehint-less elements

* [cs] standardize arrays

* [cs] standardize docblock, remove unused comments

* [cs] use self where possible

* [cs] sort class elements, from public to private

* [cs] do not use yoda (found less yoda-cases, than non-yoda)

* space

* [cs] do not assign in condition

* [cs] use namespace imports if possible

* [cs] use ::class over strings

* [cs] fix defaults for arrays properties, properties and constants single spacing

* cleanup ecs comments

* [cs] use item per line in multi-items array

* missing line

* misc

* rebase
2017-11-22 22:16:10 +01:00

49 lines
1.3 KiB
PHP

<?php
declare(strict_types=1);
namespace tests\Phpml\Clustering;
use Phpml\Clustering\FuzzyCMeans;
use PHPUnit\Framework\TestCase;
class FuzzyCMeansTest extends TestCase
{
public function testFCMSamplesClustering()
{
$samples = [[1, 1], [8, 7], [1, 2], [7, 8], [2, 1], [8, 9]];
$fcm = new FuzzyCMeans(2);
$clusters = $fcm->cluster($samples);
$this->assertCount(2, $clusters);
foreach ($samples as $index => $sample) {
if (in_array($sample, $clusters[0]) || in_array($sample, $clusters[1])) {
unset($samples[$index]);
}
}
$this->assertCount(0, $samples);
return $fcm;
}
public function testMembershipMatrix(): void
{
$fcm = $this->testFCMSamplesClustering();
$clusterCount = 2;
$sampleCount = 6;
$matrix = $fcm->getMembershipMatrix();
$this->assertCount($clusterCount, $matrix);
foreach ($matrix as $row) {
$this->assertCount($sampleCount, $row);
}
// Transpose of the matrix
array_unshift($matrix, null);
$matrix = call_user_func_array('array_map', $matrix);
// All column totals should be equal to 1 (100% membership)
foreach ($matrix as $col) {
$this->assertEquals(1, array_sum($col));
}
}
}