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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
60 lines
1.2 KiB
PHP
60 lines
1.2 KiB
PHP
<?php
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declare(strict_types=1);
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namespace tests\Phpml\FeatureExtraction;
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use Phpml\FeatureExtraction\TfIdfTransformer;
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use PHPUnit\Framework\TestCase;
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class TfIdfTransformerTest extends TestCase
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{
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public function testTfIdfTransformation(): void
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{
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// https://en.wikipedia.org/wiki/Tf-idf
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$samples = [
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[
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0 => 1,
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1 => 1,
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2 => 2,
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3 => 1,
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4 => 0,
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5 => 0,
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],
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[
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0 => 1,
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1 => 1,
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2 => 0,
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3 => 0,
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4 => 2,
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5 => 3,
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],
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];
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$tfIdfSamples = [
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[
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0 => 0,
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1 => 0,
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2 => 0.602,
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3 => 0.301,
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4 => 0,
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5 => 0,
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],
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[
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0 => 0,
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1 => 0,
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2 => 0,
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3 => 0,
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4 => 0.602,
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5 => 0.903,
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],
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];
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$transformer = new TfIdfTransformer($samples);
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$transformer->transform($samples);
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$this->assertEquals($tfIdfSamples, $samples, '', 0.001);
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}
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}
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