82 lines
1.7 KiB
PHP
82 lines
1.7 KiB
PHP
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<?php
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namespace Rubix\ML\Tests\Graph\Nodes;
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use Rubix\ML\Graph\Nodes\Node;
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use Rubix\ML\Graph\Nodes\Depth;
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use Rubix\ML\Datasets\Unlabeled;
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use Rubix\ML\Graph\Nodes\BinaryNode;
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use PHPUnit\Framework\TestCase;
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/**
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* @group Nodes
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* @covers \Rubix\ML\Graph\Nodes\Depth
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*/
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class DepthTest extends TestCase
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{
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protected const SAMPLES = [
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[5.0, 2.0, -3],
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[6.0, 4.0, -5],
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[-0.01, 0.1, -7],
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];
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protected const DEPTH = 8;
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protected const C = 8.207392357589622;
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/**
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* @var \Rubix\ML\Graph\Nodes\Depth
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*/
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protected $node;
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/**
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* @before
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*/
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protected function setUp() : void
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{
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$this->node = new Depth(self::C);
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}
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/**
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* @test
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*/
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public function build() : void
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{
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$this->assertInstanceOf(Depth::class, $this->node);
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$this->assertInstanceOf(BinaryNode::class, $this->node);
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$this->assertInstanceOf(Node::class, $this->node);
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}
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/**
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* @test
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*/
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public function c() : void
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{
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$this->assertEquals(3.748880484475505, Depth::c(10));
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$this->assertEquals(8.364671030072245, Depth::c(100));
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$this->assertEquals(12.969940887100174, Depth::c(1000));
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$this->assertEquals(17.575112063754766, Depth::c(10000));
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$this->assertEquals(22.180282259643523, Depth::c(100000));
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}
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/**
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* @test
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*/
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public function terminate() : void
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{
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$dataset = Unlabeled::quick(self::SAMPLES);
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$node = Depth::terminate($dataset, self::DEPTH);
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$this->assertEquals(self::C, $node->depth());
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}
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/**
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* @test
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*/
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public function depth() : void
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{
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$this->assertEquals(self::C, $this->node->depth());
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}
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}
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