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