mirror of
https://github.com/Llewellynvdm/php-ml.git
synced 2024-09-27 22:49:04 +00:00
726cf4cddf
* 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
49 lines
1.3 KiB
PHP
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));
|
|
}
|
|
}
|
|
}
|